If you are locked in a completely sealed room, you will die of carbon dioxide poisoning before you will die of oxygen deprivation. See more

In Hong Kong, a betrayed wife is legally allowed to kill her adulterous husband, but may only do so with her bare hands. The husband's lover, on the o See more

To "testify" was based on men in the Roman court swearing to a statement made by swearing on their testicles. See more

Until the 1960's men with long hair were not allowed to enter Disneyland. See more

Men can read smaller print than women; women can hear better. See more

75% of wild birds die before they are 6 months old. See more

Women blink nearly twice as much as men. See more

Over 10,000 birds a year die from smashing into windows. See more