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
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Two dogs were among the Titanic survivors.
262
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Only 3% of bird species have penises.
0
A puppy is born blind, deaf, and toothless.
16
The largest breed of rabbit is the Flemish Giant.
65