Early American humans hunted car-size armadillos and used their shells for houses.
12
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The head of a jellyfish is called the "Bell."
6
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
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The elephant brain weighs about 6,000g.
274