If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Female kangaroos have three vaginas.
2
The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
17
The largest breed of rabbit is the Flemish Giant.
65
Gorillas can catch human colds and other illnesses.
205
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
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