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
Sloths take two weeks to digest their food.
243
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
When dragonflies mate, their tails form a love heart.
22