Sloths take two weeks to digest their food.
243
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
The reindeer is the only mammal that can see UV light.
17
The colossal squid has the largest eyes in the world.
4
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Lobsters have blue blood.
476