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
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
Lobsters have blue blood.
476
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
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19