The elephant brain weighs about 6,000g.
274
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Early American humans hunted car-size armadillos and used their shells for houses.
12
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8