In the United States, species were first introduced from Europe and China around 1900 as garden predators in an effort to control pest populations. The Carolina mantis is the official state insect of South Carolina, and ...Read More

Although manatees are excellent swimmers, the deepest that one has been observed diving is 33 feet. Typically, the large, gentle creatures feed no deeper than about ten feet below the surface of the water.

The "Sandcastle Effect" was identified by researchers at the University of Notre Dame, Indiana and first published on June 18, 1997. It explained why sandcastles do not collapse after the sand in them has almost totally ...Read More

Auto racer Dan Gurney was one of the first U.S. drivers to use rear-engine race cars. He won the Le Mans race (1967), and finished second in the Indianapolis 500 twice (1968 and 1969).

There are ten human body parts that are only three letters long: eye, hip, arm, leg, ear, toe, jaw, rib, lip, gum.

The Colt Single Action Army handgun (also known as the Colt Peacemaker, Single Action Army, Colt .45 and sometimes as The Equalizer) is a single action revolver with a revolving cylinder holding six rounds. It was designed...Read More