Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The elephant brain weighs about 6,000g.
274
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8