Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
By weight, Bone is five times stronger than steel.
417
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Pain occurs when sounds are above 130 db.
124
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Gorillas can catch human colds and other illnesses.
205