Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The elephant brain weighs about 6,000g.
274
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The male seahorse carries babies and 'gives birth' to them instead of the female.
7