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Adaptation in the Saiga Antelope - Exploring Nature

Adaptation in the Saiga Antelope - Exploring Nature

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<strong>Adaptation</strong> <strong>in</strong> <strong>the</strong> <strong>Saiga</strong> <strong>Antelope</strong><strong>Adaptation</strong> <strong>in</strong> a population of liv<strong>in</strong>g th<strong>in</strong>gs happens as a result of an adaptive trait. This is any <strong>in</strong>heritable traitthat <strong>in</strong>creases it’s survival rate so that it can live longer, reproduce longer, and have more offspr<strong>in</strong>g (that also havethat trait). Adaptative traits can improve animals f<strong>in</strong>d food, make a safer home, escape predators, survive cold orheat or lack of water.The <strong>Saiga</strong> <strong>Antelope</strong> has developed a nose with a curious shape. It is swollen and hangs down over its mouth. Thisis adaptive trait actually has proved quite useful to <strong>the</strong> saiga. Their large nose allows <strong>the</strong> extremely cold air that<strong>the</strong> saiga brea<strong>the</strong>s on <strong>the</strong> Steppes of Mongolia, to circulate around and warm before be<strong>in</strong>g taken <strong>in</strong>to <strong>the</strong> lungs.This helps <strong>the</strong>m survive <strong>in</strong> <strong>the</strong>ir frigid habitat. Their swollen nose also helps filter out <strong>the</strong> dust <strong>the</strong>y breath <strong>in</strong> on<strong>the</strong>ir annual migration across <strong>the</strong> dry pla<strong>in</strong> <strong>in</strong> summer. Their filter<strong>in</strong>g, air-warm<strong>in</strong>g nose is an adaptation thatmust have helped <strong>the</strong> saiga survive <strong>in</strong> <strong>the</strong>ir extreme environment.


For Discussion and Critical Th<strong>in</strong>k<strong>in</strong>g:The saiga antelope’s adaptive traits helps it survive <strong>the</strong> freez<strong>in</strong>g temperatures on <strong>the</strong> Steppes of Mongolia.1. What o<strong>the</strong>r traits might <strong>the</strong> saiga have to survive <strong>the</strong> cold?____________________________________________________________________________________________________________________________________________________________________________________2. Can you th<strong>in</strong>k of o<strong>the</strong>r animal that live <strong>in</strong> very cold environments? Name four and an adaptive trait that helps<strong>the</strong>m survive <strong>the</strong> cold.1. ______________________________________________________________________________________________________________________________________________________________________2. ____________________________________________________________________________________________________________________________________________________________________3. _____________________________________________________________________________________________________________________________________________________________________4. _____________________________________________________________________________________________________________________________________________________________________3. Can you th<strong>in</strong>k of o<strong>the</strong>r animals whose snout-shape might help <strong>the</strong>m survive? Name two and how <strong>the</strong>y use<strong>the</strong>ir snout to help with survival.1. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2. _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4. When you are out <strong>in</strong> <strong>the</strong> extreme cold, what might you do to help warm <strong>the</strong> air before you brea<strong>the</strong> it?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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