Crocodile babies don't have sex chromosomes; the temperature at which the egg develops determines gender.
45
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Frogs sometimes eat enough fireflies that they themselves glow.
71
The ant can lift things 10 times its own weight.
33
Polar bear fur is not white, it's clear.
74
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Bluebirds cannot see the color blue.
40
