Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
Sharks have been on the planet longer than trees.
14