When dragonflies mate, their tails form a love heart.
22
The octopus does not have a blind spot.
273
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
Penguins have a gland above their eye that turns saltwater into freshwater.
12
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212