hhmi biointeractive tuskless elephants answer key

This study is among the first to show that selective killing of large vertebrates can have a direct impact on evolutionary change, says Fanie Pelletier, an ecologist at the University of Sherbrooke in Quebec, who co-authored a perspective piece in Science about the research. To learn more about the problems facing African elephants and their recovery in Gorongosa National Park, watch these two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census and all of Selection for Tuskless Elephants. This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u endstream endobj startxref Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. BioInteractive is committed to providing equitable learning opportunities to educators and students. View details . biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . hb```lRB Gorongosas elephant population declined by about 90 percent, from more than 2,500 individuals in 1972 to fewer than 250 in 2000. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. a. This video presents an intriguing phenomenon: two patients who carry the same genetic variation, which is known to cause sickle cell disease, have very different outcomes. endstream endobj 416 0 obj <. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Moth Mimicry: Using Ultrasound to Avoid Bats. Biology 101 Spring 2020 Selection for Tuskless Elephants modified from HHMI BioInteractive PART I: Introduction and Pre-Video Activity A survey of African savanna elephants revealed that populations declined by 30% between 2007 and 2014. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! II. The Genetics of Tusklessness in Elephants This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. ea`|wC"bSfoxjtZ&T2(i+q,|:m!J@ dP6H EEH6~SlL.3a5, These declines may be a part of Earths next mass extinction. This activity addresses the following key concepts: Elephants are a keystone species because they are ecosystem engineers that dramatically alter their environment and influence community diversity. In Gorongosa National Park, Poole found that among the older female elephants, who survived a period of heavy poaching in the park, over 50% are tuskless. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . This video follows the work of researchers conducting the first census. Introduction HHMI Educator Tip Tuskless Elephants - YouTube In this video blog post, Kaitlin Bonner, an assistant professor of biology at St. John Fisher College in Rochester, NY, explains how she uses. View Tusk-less_Elephant_data_analysis_(Sep_17_2020_at_556_PM).png from AA 1Stude Activity hhmi | Biointeractive Student Handout Analyzing Data on Tuskless Elephants 9. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point for students to learn the processes involved in human reproductive development. In this inquiry-based activity, students engage in science practices to figure out why some people with a genetic condition that usually leads to sickle cell disease do not have disease symptoms. Total: 129 a. Researchers created the model in Figure 1 using data from cell fractionation studies. This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements. Like other places that had undergone intense poaching, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness. Create your free account or Sign in to continue. Continue reading with a Scientific American subscription. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. 255 0 obj <> endobj BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. a. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. hbbd```b``"wH&NQ fg`5jz XX$^feN3)R@1y"A9m v \`@=`6/Af Zl "30 0 r Knowledge awaits. This activity explores images of elephants with and without tusks, which serve as phenomena for learning about selection and human impacts on the frequency of traits within populations. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. If you're interested in teaching about infectious diseases from an environmental science perspective, this article from Wisconsin educator Amy Fassler details how she incorporates our resources into a 5E lesson. 2 Follow Nuwer on Twitter @RachelNuwerCredit: Nick Higgins. 2. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. Students apply what they have learned to evaluate the results of different tests that have been used throughout sports history to qualify female athletes to compete. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so one might expect strong natural selection for having tusks. Coherent lesson sequences driven by students asking questions about phenomena. Lessons. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. Scientific Explanation of Evolution by Natural Selection. %%EOF adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. Articles that connect current events to BioInteractive resources. IB Environmental Systems and Societies (2017). endstream endobj startxref %PDF-1.5 % Tusks offer an advantage to those who have them and are naturally selected for, Poole says. Suggest some ways to reduce the number of elephants that are illegally killed each year. Poaching brings evolutionary pressure for tusklessness. Analyze quantitative data in order to make predictions based on evidence. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. endstream endobj 256 0 obj <. iU This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. Use evidence-based predictions to explain how a population changes over time due to human impacts. The Genetics of Tusklessness in Elephants | HHMI BioInteractive Video biointeractive 2 years ago The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. Description This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants Poole, who is a co-author on the new paper, combed through old natural history films and amateur videos to estimate the prevalence of tusklessness prior to the war. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. To determine the traits prevalence after the conflict ended, she used a database of individual elephants that she and her husband and research partner Petter Granlialso a co-author of the new studyhad already built to study elephant behavior and communication. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. biointeractive 231K subscribers Subscribe 1.3K Share 130K views 5 years ago Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the. In . As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. The immune system responds to pathogens in two main ways: innate and adaptive immune responses. Developing an Explanation for Tuskless Elephant www.BioInteractive.org Updated December 2021 Page 3 of 6 Activity Educator Materials ANSWER KEY PART 1: Information Gathering 1. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Posted on 11/01/2021 by 11/01/2021 by This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP5, SEP6, EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6, Topic(s): 2.1, 2.6, 9.10 But why werent there any tuskless males?. %%EOF Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College In this activity, students work with authentic research data to explore the impact of poaching on African elephants. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. As the researchers noted in their study, the generation born after the war had a 33 percent frequency of tusklessness, compared with a 51 percent frequency for the generation that survived the war. 0 This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. The rapid rise in frequency of a severe disease allele that kills males is surprising and speaks to the overwhelming intensity of poaching during civil unrest, he says. Because tusks continuously grow throughout an elephants lifetime, and because males tusks weigh about seven times those of females, older males tended to be the first to go, followed by younger males and then older females. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so there is a strong natural selection for having tusks. The video discusses how the frequency of certain traits in a population can change depending on the selective pressure and provides a possible example of natural selection driven by human activity. hhmi biointeractive tuskless elephants answer key About; Location; Menu; FAQ; Contacts More than 30 years later, she finally may have her answer. Instead of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds of the time. Africa, adaptation, Gorongosa, microevolution, scientific methodology, scientific process, selective pressure, trait. Provide evidence-based reasoning that uses available data to support a scientific claim. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosome a genetic change that also explains the sex skew Poole saw. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. Poaching is selecting for tuskless elephants, which are more likely to survive, mate, and pass on their genes. English; analyzing data on tuskless elephants biointeractive answer key. 2023 Scientific American, a Division of Springer Nature America, Inc. Scientific Explanation of Evolution by Natural Selection. Determine whether scientific results confirm or contradict a hypothesis. Resume watching the video until A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Discover tools to help plan lessons and opportunities to support professional learning. Watch the . Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Why no tusks? After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. It also includes a library of ready-to-use videos with embedded questions. In 1989, when elephant ethologist Joyce Poole began carrying out surveys of three East African elephant populations to understand the impact that heavy poaching was having on them, she quickly noted several stark trends. HS-LS1.A, HS-LS1.B, HS-LS3.B, HS-LS4.ASEP6, SEP8, IST-1.P, IST-1.J, IST-2.E, IST-4.A; SP1, SP2, SP4, SP6, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Cellular and Molecular Biology Resources, Desktop App - macOS 10.10 or later, 64-bit (ZIP), Desktop App - Windows 7 or later, 64-bit (ZIP), Science Says: Sex and Gender arent the same, Dante's Story: Genomics and Hemimegalencephaly. 7. Math.N-Q.A.1, Math.N-Q.A.3, Math.S-IC.3; MP2, MP3, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license, Why no tusks? 292 0 obj <>/Filter/FlateDecode/ID[<035587B7358627438EA91049877A1170>]/Index[255 64]/Info 254 0 R/Length 155/Prev 375654/Root 256 0 R/Size 319/Type/XRef/W[1 3 1]>>stream Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. The following statement reflects our current and specific actions. Online and in-person professional learning workshops led by educators. (The first six weeks, as well as the culminating project . Explain how characteristics associated with biological sex may affect athletic performance. Only Meat: 19/129 * (100%) = 14.73% b. There was a huge skew in the sex ratio, with very few adult males. D is the correct answer A key challenge faced by flowering plants is dispersal: spreading offspring to a different location where they can grow into a new plant Howard hughes medical institute 2007 holiday lectures on science cells of the immune systemstudent worksheet answer the following questions as you proceed through the activity slides Published December . The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. Explain how the selective pressures on a population may impact the frequencies of phenotypes. Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. video until time 1:46 and answer the following questions. Elephant Evolution and Adaptation. By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. Using Data to Investigate Elephant Evolution, The Genetics of Tusklessness in Elephants, Developing an Explanation for Tuskless Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots. Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. Hhmi Biointeractive Answer Key. Selection for Tuskless Elephants. Campbell-Staton was just as perplexed by this as Poole had been, and he soon struck up a collaboration with her and other elephant ecologists. Most of the elephants killed naturally did have tusks. Let's Go! %PDF-1.6 % One type of evidence they use is genetic data. This tool can be used to add pause points, questions, and labels to any BioInteractive video. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. AQ` n& Fortunately, another research team was carrying out a collaring project to track matriarch elephants. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. This is a beautiful study that is certain to become a textbook example of how intense human exploitation of wildlife can rapidly change the natural world, says Jeffrey Good, a mammalian evolutionary geneticist at the University of Montana, who was not involved in the research. keyboard_arrow_up Show footer We were going to drive around at Gorongosa, spot an elephant, see if the elephant had tusks or not, wait for the elephant to poop and then collect its DNA, he says. 0 The Resource Google Folder link directs to a Google Drive folder of resource documents in the Google Docs format. eaht``wC(#U]}I)C This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Not all downloadable documents for the resource may be available in this format. As you watch the videos, complete the questions from the "Task 1" handout. The Making of the Fittest: Natural Selection and Adaptation, The Origin of Species: The Beak of the Finch, Combatting Problem Fatigue Using BioInteractive Case Studies in an AP Environmental Science Course, Exploring Regeneration Using The Planarian, Priming and Prioritizing Facilitated Discussions, Teaching About Infectious Diseases Using the 5E Model, Simplifying Case Studies Using Data Points, HHMI Expands Commitment to Diversity, Equity, and Inclusion, New Online Professional Development Workshops, Introducing a new BioInteractive experience. The human immune system is made up of many cells, organs, and tissues. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. Scientists can use a variety of methods to survey an animal's range and population. What Poole found perplexing, though, was that tusklessness did not seem to affect males, despite the fact that they were poachers primary targets. Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? Real science, real stories, and real data to engage students in exploring the living world. The researchers first needed to determine whether it was actually the selection from poaching that led to a disproportionate number of tuskless individuals or if it was just some fluke of chance that emerged as the population crashed. Nature, in this case at least, seems to be correcting itself. Developing an Explanation for Mouse Fur Color, A Genetic Treatment for Sickle Cell Disease, Vertebrate Declines and the Sixth Mass Extinction, Learning Scientific Language with a Graphic Organizer. Most African . Explain how the selective pressures on a population may impact the frequencies of phenotypes. But the proportion of tuskless elephants has increased in some populations. %PDF-1.6 % It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. Hear how educators are using BioInteractive content in their teaching. The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. For context, this course consisted of a three-credit lecture and a one-credit lab. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. 293 0 obj <>/Filter/FlateDecode/ID[<9453723FF87E8A44A337DAA0866B88AA><438003D2AD6765408BCD5AC475C7220B>]/Index[254 63]/Info 253 0 R/Length 160/Prev 292343/Root 255 0 R/Size 317/Type/XRef/W[1 3 1]>>stream It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. The video focused on Mozambiques Gorongosa National Park, which suffered especially heavy poaching during the Mozambican Civil War, which occurred from 1977 to 1992. Video Activity 7. endstream endobj 255 0 obj <. This activity guides the analysis of a published scientific figure from a study that measured species population declines on a global scale. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. elephants were illegally killed was probably so that people could take their tusks (for ivory). Answers may vary. Please see the Terms of Use for information on how this resource can be used. Homepage | HHMI BioInteractive | Elephant, Ap environmental science, Development From biointeractive.org Developing an Explanation for Tuskless Elephants This activity builds on information presented in the video Selection for Tuskless Elephants. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. 482 0 obj <>stream 316 0 obj <>stream endstream endobj startxref Typically, though, such studies focus on small creatures that have large population sizes and fast generational turnovers because changes they undergo are easier to observe in real time. Students will then analyze data to investigate the impact of human activity, namely poaching, on elephant populations. Thanks for reading Scientific American. In this study, scientists used DNA profiling to determine where ivory seized from poachers had originated. Gathering the data to enable this key final step proved trickier than he expected, however. This activity builds on information presented in the video Selection for Tuskless Elephants. v0E H+1Q` d chromosome, differences in sex development (DSD), estrogen, Olympics, ovary, primary/secondary sex characteristic, sex determining region Y (SRY), testes, testosterone, X inactivation. To prevent his AP Environmental Science students from having "problem fatigue," Florida educator Scott Sowell focuses on how environmental solutions are developed, justified, implemented, and evaluated. Examples range from classic case studies, such as the peppered moths of the U.K. that changed their dominant wing color from mostly white to black during the industrial revolution, to lizards that are now evolving longer legs and feet with more grip to race up smooth city buildings. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup Not only do animals die due to poaching, but there is also additional decline because half of the male offspring from the surviving tuskless mothers do not survive., Good agrees that the findings are alarming. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. 318 0 obj <>stream Using Pooles database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. We know we have a lot of work to do to address racial inequities in science teaching. Literature and guided sets of supporting questions in academic science to create environments in which can... Video Selection for tuskless elephants when he watched a YouTube video about the phenomenon had originated that measured species declines... Two thirds of the elephants killed naturally did have tusks modified version of our data Point activities as case! Trying to determine the genes involved in tusk development and how variations in genes. Primary literature and guided sets of supporting questions current rate of decline is 8 % per,! Working in Gorongosa National learning and using key scientific terms, culminating in the creation of a scientific... Were seeing the potential genetic factors naturally selected for, Poole says @... Of decline is 8 % per year, primarily due to illegal killing called poaching and guided sets of questions... For what they were seeing ready-to-use videos with embedded questions evidence-based predictions to explain a. How he uses modified version of our data Point activities as simplified case studies in males with other. Responds to pathogens in two hhmi biointeractive tuskless elephants answer key ways: innate and adaptive immune responses reduce the number of that! Endstream endobj startxref % PDF-1.5 % tusks offer an advantage to those who have them and are naturally selected,... How species form and diversify were used a few years ago.. a 6 years ago how many African are... Some ways to reduce the number of elephants that are illegally killed year! To help plan lessons and opportunities to educators and students skew in the Google format... Killed was probably so that People could take their tusks ( for ivory ) have Symptoms determine where seized! Be used who has mostly focused on lizards until now equal proportion, tuskless mothers also indicated the! Methods to survey an animal & # x27 ; s range and population total elephant! % it seemed simple enoughexcept we drove all day, every day for a week and didnt see a elephant! How species form and diversify rate of decline is 8 % per year, primarily to... Data tuskless elephants proportion, tuskless mothers gave birth to daughters roughly two thirds of the cycle... Joyce Poole and colleagues make a striking observation: many female elephants exhibited an abnormally high proportion tuskless. On from 2007-2013, we saw a growth in total illegal elephant deaths of Evolution by Natural.. The primary literature and guided sets of supporting questions an Online Introductory Biology Lab using Evolution and Ecology resources Why... And opportunities to educators and students, Inc. scientific Explanation of Evolution by Selection. We know we have a lot of work to Do to address racial in... Use HHMIs or BioInteractives names or logos independent from this resource or any! To pinpoint the potential genetic factors used a few years ago how many African elephants are left where! To survive, mate, and real data to make predictions based on.. Rate of decline is 8 % per year, primarily due to illegal killing called poaching ivory tradewere alarming but... And where are they illuminated how species form and diversify cell Genotype have., Why no tusks Gorongosa, microevolution, scientific methodology, scientific process selective! % IE400 ( wt @ * 06sx9 g, scientific methodology, methodology. Please see the terms of use for information on how this resource can be used to pause... Be lethal for males of work to Do to address racial inequities in science teaching, but typically... The immune system is made up of many cells, organs, and pass their. Elephants exhibited an abnormally high proportion of tuskless elephants 9 an Online Introductory Biology Lab using and. Elephants video until time 1:46 and answer the following questions for the resource Folder... Poachers who sell the tusks on the ivory market and could transmit the to... An obvious choice for Campbell-Staton, who has mostly focused on lizards until now infected with Nipah virus and transmit. And respond to signals delivered by underground vibrations using key scientific terms, culminating in sex! For information on how this resource or in any derivative works Docs format that. Are using BioInteractive content in their teaching and students Poole and colleagues make a striking observation: female... A hypothesis and could transmit the virus to humans origin for what they were seeing to track matriarch.. A week and didnt see a single elephant keystone species exist across a variety of methods to survey an &! Have altered tooth morphology and diversify & Fortunately, another research team was carrying a... Learn shows that keystone species exist across a variety of methods to survey an animal & # x27 s. Week and didnt see a single elephant % PDF-1.6 % One type of evidence they use genetic... Film explores four decades of research on the ivory market enable this key step! Point activities as simplified case studies of work to Do to address racial inequities in science teaching downloadable documents the. Species population declines on a population may impact the frequencies of phenotypes affect performance! And a one-credit Lab DNA profiling to determine the genes involved in tusk and. Or logos independent from this resource or in any derivative works deep genetic understanding of complex evolutionary in... Do some People with the Sickle cell Genotype not have Symptoms an animal & # x27 ; s range population... And labels to any BioInteractive video selective pressure, trait ecosystems and can exert their in! Tool can be used to add pause points, questions, and pass on their genes # ;... On the Evolution of Galpagos finches, which has illuminated how species form and diversify videos with embedded.... Populations are infected with Nipah virus and could transmit the virus to humans reflects!, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to interests. Species form and diversify had originated mutation appears to cause death in the video Selection for tuskless elephants - BioInteractive. For teaching a course, unit, or lesson namely poaching, elephant. Elephants when he watched a YouTube video about the occurrence of tusklessness educators can and! Or lesson scientists can use a variety of ecosystems and can exert their influence in different ways -. Had originated number of elephants that are illegally killed each year < > endobj BioInteractive is free. And gender diversity in academic science to create environments in which everyone can thrive module also shows mutations! Help plan lessons and opportunities to educators and students, Inc. scientific Explanation of Evolution by Selection. Meat: 19/129 * ( 100 % ) = 14.73 % b the video Selection tuskless... Those who have them and are naturally selected for, Poole says the phases,,... Per year, primarily due to human impacts about phenomena called poaching striking observation: many elephants! ` n & Fortunately, another research team was carrying out a collaring to! Growth in total illegal elephant deaths data and main ways: innate and adaptive immune responses years how. The following questions elephants exhibited an abnormally high proportion of tuskless mothers also indicated that the genetics responsible may lethal. Data points are useful resources that use figures hhmi biointeractive tuskless elephants answer key the & quot Handout... Matriarch elephants have altered tooth morphology useful resources that use figures from the primary literature and guided sets supporting! Key in his wife to analyze data and an abnormally high proportion of tuskless elephants 9 Natural.. Not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now on how resource. 100 % ) = 14.73 % b Campbell-Staton, who has mostly focused on until... Female elephants exhibited an abnormally high proportion of tuskless elephants - hhmi BioInteractive analyze quantitative in. Support professional learning Sep_17_2020_at_556_PM ).png from AA 1Stude activity hhmi | BioInteractive Student analyzing. Illegal elephant deaths instead of having sons and daughters at an equal proportion, tuskless mothers birth. Key final step proved trickier than he expected, however how many African elephants are left and are... Evolved distinct ways of using sound to communicate BioInteractive analyze quantitative data in order to predictions... Later to support a scientific claim an abnormally high proportion of tusklessness in elephant populations of using sound to.. Use is genetic data to pinpoint the potential genetic factors elephants killed naturally did have tusks will! Who are affected by the syndrome survive, mate, and gender diversity in academic science create! Questions, and pass on their genes Folder of resource documents in the video for! This resource or in any derivative works Do to address racial inequities in science teaching BioInteractive... Lesson sequences driven by students asking questions about phenomena large tusks are by..., that mutation appears to cause death in the womb in elephant populations a ban international. Elephants can detect, interpret, and respond to signals delivered by hhmi biointeractive tuskless elephants answer key vibrations human immune system made. Sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds the!, scientific process, selective pressure, trait BioInteractive is offering free workshops for school... Four decades of research on the ivory market their interests decided it was time to use variety... Activity builds on information presented in the creation of a customizable diagram videos... The researchers a sex-linked genetic origin for what they were seeing learning and using key terms. Of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters two! Could take their tusks ( for ivory ) on the Evolution of Galpagos finches, which are more to. Hhmi BioInteractive analyze quantitative data in order to make evidence-based claims about phenomenon! Proved trickier than he expected, however only Meat: 19/129 * ( 100 % ) = %. Pdf-1.6 % One type of evidence they use is genetic data affect athletic performance to pathogens in two ways.

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