Dogs have been man's pet for over 14,000 years.
224
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The cat brain weighs about 30g.
167
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23