Do subterranean tunnel living mole rats know the secret to a long healthy life or do they have an adaptation that helps them ? How do cats survive falls from height and always land on their feet? How do hummingbirds fly when it is raining? Butterfly wings not only get them around, but markings act to confuse predators.
Caterpillars transform into butterflies only after stuffing themselves with food. Sharks do sleep but in very small amounts. Cat tongues are rough, because they basically comb their fur clean with it. Bats hang upside down because it makes it easier to fly, and Wombats poop cubes because of their intestine design.