The bottom of the Mariana Trench is about 35,876 feet (10,935 meters) deep, making it deeper than Mount Everest is tall.
The oldest known inscription mentioning the Norse god Odin has been found on a gold pendant in Denmark from the fifth century A.D.
The brain doesn't have its own pain receptors, so why do headaches hurt so much?
Scientists have identified a mutant strain of clonal raider ants that look like miniature queens and evolved quickly because of a single "supergene" mutation.