"They can regenerate into new individuals." ...

When some flatworms can't find a mate, a new study says, they reproduce in a way that will make you thank the god of your choice you're not a flatworm. CNET freelancer Danny Gallagher has contributed ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A new species of flatworm has been found invading the U.S., having ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Looking like a cross between a slimy slug and a flattened snake, the ...

A new dangerous invasive species — the ocher flatworm — has been found in the Nordic countries. The species has not yet been ...

It is often suggested that anyone who finds one of these invasive worms should kill it (carefully). Here's what else to know.

A dog-killing parasite that was believed to only exist in Texas and other Gulf Coast states has been discovered as far west as California for the first time, scientists have warned. The worm can cause ...

The planarian flatworm Schmidtea mediterranea is an extraordinary animal. Even when cut into tiny pieces, each piece can regenerate back into a complete and perfectly proportioned miniature planarian.

A video of a marine flatworm engulfing a crab at low tide has become viral on the internet. The video shows the former blanketing the crab while the latter tries to escape but fails. Watch the video ...