Only 3% of bird species have penises.
0
Condoms were originally made of animal intestines or linen.
347
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Rattlesnake mating sessions have been known to last more than 22 hours.
232
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12