The cat brain weighs about 30g.
167
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Rattlesnake mating sessions have been known to last more than 22 hours.
232
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Giant Anteaters' front legs look like a panda.
48
Only 3% of bird species have penises.
0