Some worms have the uncanny ability to regrow after being cut in half, and the science behind it, as well as notable examples, can be surprisingly complicated.

As a child, you may have been told that an earthworm will regenerate into two new worms if it's cut in half. But if you've ever experimented with the tube-like animals, you've probably been ...

Some worms regenerate when cut in half laterally, but what would happen if they were cut in half longitudinally? Thomas Barker Cambridge, UK. It seems this depends heavily on which phylum of worm ...

Hammerhead worms are a terrestrial flatworm with a half-moon shaped head, according to the Texas Invasive Species Institute. Their heads look not unlike the similarly-named hammerhead sharks.

Hammerhead worms have been found near the Washington, D.C. area, the latest region to become a home to the invasive species. Hailing from Southeast Asia and so far preferring hotter climates in ...