Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
The octopus does not have a blind spot.
273
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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