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
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Two dogs were among the Titanic survivors.
262
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
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
A group of kittens is called a "kindle".
10