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
Catgut comes from sheep not cats.
11
World's heaviest primates: morbidly obese humans. After that: gorillas at 485 lbs.
106
Human birth control pills work on gorillas.
52
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
The sloth (a mammal) moves so slowly that green algae can grow undisturbed on its fur!
104
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
A giraffe can clean its ears with its 21-inch tongue!
31