Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8
Early American humans hunted car-size armadillos and used their shells for houses.
12
Sloths take two weeks to digest their food.
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