One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The octopus does not have a blind spot.
273
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Cats and dogs can hear ultrasound.
350
Mosquitoes don't just bite you, they also pee on you.
11
The head of a jellyfish is called the "Bell."
6