Only humans shed emotional tears.
331
We share 70% of our DNA with a slug.
218
By weight, Bone is five times stronger than steel.
417
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
35
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Gorillas can catch human colds and other illnesses.
205