It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Cows can sleep standing up, but they can only dream lying down.
745
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Penguins have a gland above their eye that turns saltwater into freshwater.
12