A puppy is born blind, deaf, and toothless.
16
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
When dragonflies mate, their tails form a love heart.
22
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
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
In Australia, there are spiders big enough to eat snakes.
20