On average, there's 300 billion neurons in the octopus brain.
129
Beavers have orange teeth!
23
The first two years of a dog's life are equal to 24 human years.
25
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
If it isn't moving a frog can't see it. If the frog can't see it, he won't eat it.
28