Condoms were originally made of animal intestines or linen.
347
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Tigers, leopards, and jaguars love "Calvin Klein's Obsession for Men". The scent is used to attract animals to cameras in the wilderness, and was even a turn on for one pair of Jaguars who were subject to it.
17
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The colossal squid has the largest eyes in the world.
4
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47