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
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Squirrels forget where they hide about half of their nuts.
698
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Cats and dogs can hear ultrasound.
350
Cows can sleep standing up, but they can only dream lying down.
745
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23