Can turtles push their heads completely inside their shells?

It is a long-held belief that turtles can tuck their heads into their shells when threatened. But is it true? And is it this defense that turtles around the world have shells today? The answer, experts told Live Science, is that some types of turtles can, and some cannot. And while shells may be protective […]

History of Science: Norwegian explorer wins perilous race to the South Pole while British rival dies along with his crew — December 14, 1911

Milestone: Humanity reaches the South Pole Date: December 14, 1911 Location: Geographical South Pole, Antarctica People: Roald Amundsen and his crew In 1910, a fierce competition began between Norwegian explorer Roald Amundsen and British sea captain Robert Falcon Scott. Each explorer wanted to be the first to reach the geographic South Pole and thereby conquer […]

How is a “traumatic tattoo” made and do you have one?

Usually, we get tattoos intentionally. However, some injuries can leave another type of mark known as a “traumatic tattoo.” These tattoos have nothing to do with needles or ink. So what exactly is a traumatic tattoo? Traumatic tattoos are formed by everyday substances such as graphite, dirt, and gravel. Alternatively, pieces of metal, such as […]