When dragonflies mate, their tails form a love heart.
22
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
Dogs have been man's pet for over 14,000 years.
224
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
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