One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
A dairy cow can produce more milk when listening to music.
446
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Rattlesnake mating sessions have been known to last more than 22 hours.
232