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
Obsessive nose picking is called Rhinotillexomania.
101
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Tigers can see 6 times better at night than humans.
305
Enamel is hardest substance in the human body.
61
The human brain doesn't stop developing until about 25 years old.
102
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
