One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
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
Denmark has twice as many pigs as there are people.
66
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
The head of a jellyfish is called the "Bell."
6
Domestic pigs average a top speed of about 11 miles per hour.
182