When dragonflies mate, their tails form a love heart.
22
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
One in three dog owners say they have talked to their pets on the phone.
427
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2