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
Only 3% of bird species have penises.
0
There are approximately three chickens for every human on Earth.
13
Cats recognise the voice of their owner, but never evolved to care.
22
Nicole Kidman is scared of butterflies.
65