Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A 42-foot sperm whale has about 7 tons of oil in it.
209
Lurch, a Watusi bull, had the largest horns in the world.
32
Cats recognise the voice of their owner, but never evolved to care.
22
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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79