The latest addition is the Marine Organismal Body Size (MOBS) database, an open-access resource that—as its name implies—has ...

Sea worm’s reproductive bits grow their own eyes before mating The branching marine worm has one head, many butts, and a busy sex life. By Laura Baisas Published May 20, 2025 2:30 PM EDT ...

Like, for example, the marine worm Ramisyllis multicaudata evolved a branched gut with hundreds of different buttholes along its entire body, likely because that’s what worked for its life strategy.

Researchers at the Max Perutz Labs have uncovered how marine worms regenerate lost body segments. The study reveals that differentiated cells dedifferentiate into a stem cell-like state to rebuild a ...

Photographs of seahorses taken by scuba divers revealed evidence of a long-lost species of marine worm that hasn’t been seen since the mid-1950s, scientists say.

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The sushi worm parasites start their lives in the intestinal tracts of marine mammals like seals and whales. Their eggs enter the water in feces, where they hatch.

The team set out on a boat to collect wild polychaetes—marine worms—from the sediment beneath Antarctica’s Terra Nova Bay, writes lead researcher Cinzia Corinaldesi, a marine ecologist at ...

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A marine worm found off an Italian party island has grown enormous eyes that weigh about 20 times more than the rest of its head. The eyes of the nocturnal Vanadis bristle worm are so large that ...