Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dogs have been man's pet for over 14,000 years.
224
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Dogs sometimes fake being sick to get attention.
26
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The largest earthworm on record was found in South Africa and measured 22 feet.
151