Up until the age of 6 or 7 months, a child can breathe and swallow at the same time, which an adult cannot do.
Kangaroos never drink water; they produce their own fluids from the air they breathe and the food they eat.
As a child, mathematician Blaise Pascal once locked himself in a room for several days, during which time he solved all of Euclid’s geometrical propositions totally on his own.
Poison oak isn’t oak, and poison ivy isn’t ivy at all; in fact, both are members of the cashew family.
In the 19th century, many people were accidentally poisoned by common household products like wallpaper dyes, playing cards, hat linings and flypaper, all of which contained lethal concentrations of arsenic.
It is believed that the mosquito is responsible for more than half of all human deaths throughout history.
U.S. presidents, their wives and senators and congressmen are exempt from paying postage. All they have to do is sign their name in the corner of the envelope in a practice known as “”franking.”” Today “”franked”” envelopes are valuable collectors’ items.
It has been estimated that if all the seas of Earth dried up, they would leave about 4,419,330 cubic miles of rock salt, enough to cover the entire U.S. with a layer 1.5 miles deep.
