Dogs sometimes fake being sick to get attention.
26
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Gorillas can catch human colds and other illnesses.
205
Bats sleep 18-20 hours per day.
5
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Cats and dogs can hear ultrasound.
350
The octopus does not have a blind spot.
273