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| style="height:20px; width:200px; text-align:center;" |The pattern on the backs of frogs shows '''variation'''.
| style="height:20px; width:200px; text-align:center;" |'''Variation''' in patterns on snail shells means some are better camouflaged than others.
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===Examples of Environmental Variation===
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|[[File:VariationMice.png|center|200px]]
|[[File:VariationTwins.png|center|200px]]
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| style="height:20px; width:200px; text-align:center;" |These mice are identical twins, but one has damaged its tail. The difference is an example of '''environmental variation'''.
| style="height:20px; width:200px; text-align:center;" |One of these identical twins has decided to grow a mustache the other has decided to shave completely. This is '''environmental variation'''.
|}