Mollusks, Worms, Sponges, Starfish

These 'Elvis Worms' Shimmer and Sparkle—and Fight Rough

New research describes four species of iridescent deep-sea creatures that sparkle like bedazzled Elvis Presley jumpsuits

Comb jelly larvae, highlighted by red arrows, shown inside an adult.

Invasive Comb Jellies Might Overproduce Babies in Summer to Eat Them in Winter

Comb jellies might have evolved to eat their young when prey runs out, but some experts are skeptical of the strategy

The full fossil with the body of the squid on the left and the fish to the right.

200-Million-Year-Old Fossil Captures Squid Viciously Entangled With Its Prey

The specimen may be the earliest known example of a squid-like creature on the attack

Researchers have discovered an unexpected way that larger bits of plastic are transformed into microplastics in the sea: lobsters. (The study involved Norway lobsters, pictured here.)

Norway Lobsters Crush Ocean Plastic Into Even Smaller Pieces—and That's Bad

The crustaceans' guts pulverize plastics into tiny bits that can be consumed by even smaller creatures at the base of the ocean food chain

Sushi anyone?

This Parasitic Worm Is Thriving in Nature, but May Affect Your Sushi Dinner

The worms are 283-times more abundant than they were in the 1970s, which might be a sign of healthy marine ecosystems

An Asian trampsnail on a coffee leaf infected with coffee leaf rust.

Invasive Snails Might Save Coffee Crops From Fungus, but Experts Advise Caution

The snails are an invasive crop pest that are known to eat more than just coffee rust


Watch This Deep-Sea Sponge Sneeze in Slow Motion

The glass sponge can take up to a month to finish a sneeze

A two-month-old filefish collected in the survey surrounded by plastic bits.

Newly Identified Fish Nurseries Are Choked With Plastic

Larval fish congregate in surface slicks, which contain plankton—and 126 times more plastic than surrounding waters

This is a European shore crab in the wild. Crabs like this were used in the study to complete mazes.

Crabs Can Learn to Navigate Mazes, Too

A new study highlights the cognitive abilities of an understudied animal

These Newly Discovered Shrimp Call a Whale Shark's Mouth Home

Found in a whale shark off Okinawa, hundred of amphipods were living it up in the giant fish's gills

California’s Saltiest Lake Is Home to This Arsenic-Resistant, Three-Sexed Worm

Prior to their discovery, only two species could survive in the super-salty, highly alkaline lake in the Sierra Nevada mountains

A geoduck shell found scatted among other shells discarded by the Tseshaht peoples 500 to 1000 years ago suggests that the community had been harvesting and eating geoduck for centuries.

This Centuries-Old Geoduck Shell May Rewrite the Rules About Who Can Harvest the Fancy Clam

A remnant from a meal long gone, the find in British Columbia could give the region's indigenous communities an important legal claim

Lithoredo abatanica, the rock-eating shipworm.

These Two Newly Described Worms Have Really Strange, Yet Marvelous Butts

One worm species has eyes on its behind and another eats rock then poops sand

The study's authors outline three possible scenarios for the unusual fossil's formation

This 100-Million-Year-Old Squid Relative Was Entrapped in Amber

The ancient ammonite was preserved alongside the remains of at least 40 other marine and terrestrial creatures

The Key to Biodiversity in Antarctica Is Penguin Poop

A new study shows nitrogen from penguin and elephant seal dung powers a diversity of arthropods and nematodes in surrounding areas

Ocean-Dwelling Species Are Disappearing Twice as Quickly as Land Animals

Researchers point toward marine creatures' inability to adapt to changing water temperatures, lack of adequate shelter

Shucked oyster shells lay beneath the moonlight at Fanny Bay Oyster Company on Vancouver Island in British Columbia, Canada.

Oysters Open and Close Their Shells as the Moon Wanes and Waxes

A new study suggests the mollusks may widen and narrow their shells depending on movement of plankton, which shifts with the lunar cycle

Smaller nanoplastics spread throughout the scallops' muscles, gills, gonads and other organs, while larger ones stayed mainly in the intestines

It Only Takes Six Hours for Billions of Plastic Nanoparticles to Accumulate in Sea Scallops

The particles accumulated with rapid speed, but it took up to 48 days for them to disappear from the mollusks’ systems

Never-Before-Seen Colony of 1,000 Brooding Octopuses Found Off California Coast

The deep sea creatures are raising their eggs on the Davidson Seamount in Monterey Bay National Marine Sanctuary

Researchers claim that they "defrosted" two ancient nematodes, which began moving and eating. If the claims hold up, it will be a scientific discovery for the ages

Ancient Roundworms Allegedly Resurrected From Russian Permafrost

Skeptics cite possibility of ancient samples’ contamination by contemporary organisms

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