The average sperm cell swims at 8 inches per hour.
4
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Our brains have a negativity bias and will remember bad memories more than good ones.
15
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15