The elephant brain weighs about 6,000g.
274
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The reindeer is the only mammal that can see UV light.
17
Cows can sleep standing up, but they can only dream lying down.
745
Lurch, a Watusi bull, had the largest horns in the world.
32