Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Rattlesnake mating sessions have been known to last more than 22 hours.
232
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
A 42-foot sperm whale has about 7 tons of oil in it.
209
Condoms were originally made of animal intestines or linen.
347