Typically, flatworm reproduction starts with two animals battling over which will inject its sperm through its sharp stylet into the other, Science Sushi reports. The sperm travels ...

Planarian flatworms retain whole-body regenerative ... tissues and generate new tissues during maintenance, asexual reproduction, and regeneration. In the study, "Developmental onset of planarian ...

There’s an invasive species of worm making itself known in Texas once again—the hammerhead flatworm. These worms are toxic, hard to kill, and dangerous to native critters like earthworms, but ...

Marine flatworms are among the ocean’s most unique, albeit strange, organisms. Their undulating movements make them look like silk sheets underwater. Marine flatworms are skittish but are not ...

Eventually, 11 flatworms, less than an inch long, were collected and brought back to the laboratory environment to be studied. Then researchers learned the worms belonged to a species new to science.