The cat brain weighs about 30g.
167
A puppy is born blind, deaf, and toothless.
16
A domestic cat can sprint at about 31 miles per hour.
274
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250