Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Sheep, goats, octopuses, and toads have rectangular pupils.
7
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9