Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Dogs have been man's pet for over 14,000 years.
224
Female kangaroos have three vaginas.
2
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Cats recognise the voice of their owner, but never evolved to care.
22
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22