Rattlesnake mating sessions have been known to last more than 22 hours.
232
The cat brain weighs about 30g.
167
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
There's a rare breed of pig that looks like a sheep.
14
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27