Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Cold water weighs more than hot water.
93