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
The Basenji dog is the only dog that is not able to bark.
4
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Dogs have been man's pet for over 14,000 years.
224
Mosquitoes don't just bite you, they also pee on you.
11
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17