Sloths take two weeks to digest their food.
243
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The head of a jellyfish is called the "Bell."
6