Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Lobsters have blue blood.
476
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When cats are happy, they may squeeze their eyes shut.
10