There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The elephant brain weighs about 6,000g.
274
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
The Basenji dog is the only dog that is not able to bark.
4
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Cats and dogs can hear ultrasound.
350