A chicken will lay bigger and stronger eggs if you change the lighting in such a way as to make them think a day is 28 hours long!
37
An elephant trunk has no bone but 40,000 muscles.
24
Flies are deaf.
379
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 kangaroo cannot jump if its tail is off the ground.
29
A group of kangaroos is called a mob.
28
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
