Our website features a research blog by graduate students and postdocs, … 2. Email me at michaeljgallo@hotmail.com to run your ideas by me! Female elephants do use their tusks, but female elephants in Mozambique are doing just fine without them, according to Long. 318 0 obj <>stream Developing an Explanation for Tuskless Elephants Natural Selection Published November 2018 www.BioInteractive.org Page 3 of 6 Activity Educator Materials ANSWER KEY Task I: Information Gathering 1. why are tussles elephants becoming more likely to reproduce than ones with tusks. Analyzing Data on Tuskless Elephants. Explain your answer. %PDF-1.6 %���� The tuskless matriarchs had tuskless offspring, and today nearly all female elephants in the park lack 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 Two populations have evolved into two species when _____________. Elephants Animals Reading Animales Animaux Animal Animal Memes Elephant Dieren. 255 0 obj <> endobj Look up the definition of the term poaching and summarize your understanding of what it means in the space below. 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. -Male 2 is the father because he is responsible for paternal bands that the mother and fathers 1 and 3 cannot pass on to the offspring. (12 pts) Do you need worksheets? Adult, males are very rarely found without tusks. However, in Gorongosa National Park in Mozambique, 50% of females. KEY TERMS : variation, inheritance, natural selection, adaptation, argument, ... • Perhaps the most challenging aspect of developing an explanation for students is linking evidence to claims using scientific principles. 2. the growing rate of tussles elephants in Uganda is an example. PowerPoints? These data are then used to test … Free printable worksheets, powerpoints, outlines, and more, for teachers and parents in kindergarten through high school. The tusks speak of an ancient, elusive and dangerous beast hard won with sunburnt skin, sore legs and blistered feet from miles upon miles of tracking. Geographical location of the forest elephant populations used to make a reference map. �v0ͶE H+1�Q` ݭd� This preview shows page 1 - 2 out of 6 pages. I believe that there is no greater trophy in the hunting world than a pair of 100 pound elephant tusks. Lessons that you cannot find on TpT? poachers kill elephants for their tusks so elephants with tusks don't live long enough to reproduce thus fewer elephants with tusks and more tuskless elephants. Researchers are still trying to … The purpose of the elephant tusk is more far-reaching than an aesthetic feature. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. “If you look at Asian elephants, females don’t have tusks at all, and depending on which population you look at in which country, most males are also often tuskless,” Poole explains. elephants are born without tusks and their tusks never develop as adults. (Courtesy of Eric Gaba/Wikimedia Commons) Plotting only the data for the forest elephants, students should develop a map similar to this one. The phenomenon of tuskless elephants can lead students to figure out many scientific concepts including: natural selection, adaptation, genetics, ecology, and human impact. Develop an argument to answer the question “Will the trend toward increased, tusklessness in a population with heavy poaching lead to increased African elephant population sizes in, the future?” The goal of this task is for you to make a prediction about the future of these populations. All prices are NEGOTIABLE and fair, with very quick turnaround! Selection of tuskless elephants The Great Elephant Census Moth mimicry: Using ultrasound to avoid bats ... Identifying the Key Genes for Regeneration Monkey Social Status and Immune Response New Laetoli Footprints and Hominin Body Size Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources adaptation. The normal rate for African elephants is between 2% and 6%. “Elephants carry a sex-linked gene for tusklessness, so in most populations there are always some tuskless elephants,” says Poole. 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