The elephant brain weighs about 6,000g.
274
If it isn't moving a frog can't see it. If the frog can't see it, he won't eat it.
28
Spiders have transparent blood.
56
Polar bear fur is not white, it's clear.
74
On average, it takes 660 days from conception for an elephant to give birth.
19
Turtles can live for more than 100 years.
84
Parrot parents "name" their children with a signature call.
112