Cats and dogs can hear ultrasound.
350
Sloths take two weeks to digest their food.
243
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5