Dolphins sleep with one eye open!
52
Giant Anteaters' front legs look like a panda.
48
A female ferret will die if it goes into heat and cannot find a mate.
143
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
An ostrich's eye is bigger than its brain.
32
A blue whale's heart is the size of a Volkswagen Beetle!
37
Squirrels forget where they hide about half of their nuts.
698