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
The seahorse is the only fish to have a neck.
12
Domestic pigs average a top speed of about 11 miles per hour.
182
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Only 3% of bird species have penises.
0
The elephant brain weighs about 6,000g.
274
A 42-foot sperm whale has about 7 tons of oil in it.
209
Sharks, like other fish, have their reproductive organs in their chests.
248