One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Squirrels forget where they hide about half of their nuts.
698
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
The octopus does not have a blind spot.
273
In Australia, there are spiders big enough to eat snakes.
20