Biologist Jon Allen is the proud owner of the world's oldest ribbon worm on record. The adopted invertebrate is fondly called ...

The worm is a nemertean, a group of soft-bodied marine predators found from tide pools to the deep sea. Its species is ...

Jonathan Allen, a biology professor at William & Mary in Virginia, has a very strange pet: a very very long ribbon worm ...

Biologists used to assume that ribbon worms were short-lived, fragile creatures, the kind of invertebrates that flicker ...

Anna Phillips is surrounded by worms. Millions of worms. They're all stored in a hodgepodge of glass bottles, lined up on rolling, floor-to-ceiling shelves similar to the stacks at a major library or ...