All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
The male fetus is capable of attaining an erection during the last trimester.
75
If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
28
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Enamel is hardest substance in the human body.
61
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16