The male seahorse carries babies and 'gives birth' to them instead of the female.
7
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
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
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Tigers can see 6 times better at night than humans.
305