Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Cats recognise the voice of their owner, but never evolved to care.
22
A puppy is born blind, deaf, and toothless.
16
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Moths are unable to fly during an earthquake.
328
Parrot parents "name" their children with a signature call.
112
Early American humans hunted car-size armadillos and used their shells for houses.
12
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