Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
Whales and dolphins can't taste anything other than salt.
11
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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There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8