In 1931, the Skhūl I fossil was uncovered at Mugharat es-Skhūl (the Cave of the Children), also known as Skhūl Cave, Israel.

Unlike the appendix, wisdom teeth have become vestigial structures. One estimate says 35 percent of the population is born without wisdom teeth, and some say they may disappear altogether.

It seems we actually share something in common with whales, as it turns out our tailbones, or coccyx, are also very important for the surrounding muscles, tendons, and ligaments. This vestigial ...

A mechanism that activates specific muscles in our ears is a leftover from our evolutionary past, back when our ancestors depended more on their hearing for survival.

The reduced hind limbs of whales are often touted as another example of vestigial structures, left over from their landlubbing days around 50 million years ago.

Purple martins are migratory birds that breed in Wisconsin and winter in South America. The species relies on human-supplied structures to nest.

NEW YORK — Researchers have uncovered a simple structure from the Stone Age that may be the oldest evidence yet of early humans building with wood.