A terrifying look at the Bobbit worm, a segmented marine predator that burrows into the sand and uses razor-sharp jaws to snap unsuspecting fish in half with lightning speed.

Katelyn has been a writer since they learned to hold a pencil, but was a latecomer to the world of gaming, gradually falling in love with video games over the course of high school and college. They ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...