Mollusks have produced many evolutionary innovations since they first appeared 540 million years ago, including spiral shells and a toothed tongue. A new study shows that about half of these ...

Mollusks, from land snails and slugs to oysters and mussels in the sea, have a few things in common. They have a head. They have a soft middle part that holds their organs. Then, some have a muscle ...

A new study has found that nearly half of the body traits identified across mollusks – a group that includes snails, clams, and octopuses – appeared in the first 96 million years. During that time, ...

Ammonites are a group of extinct cephalopod mollusks with ribbed spiral shells. They are exceptionally diverse and well known to fossil lovers. Researchers have developed the first biomechanical model ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. The Bay Bay Area-raised host Ericka Cruz Guevarra brings you context and ...

Mollusks add daily to the margins of their shells, producing intricate patterns prized by beachcombers. Though this seems complex, the process can actually be explained by a simple network of nerve ...

Pick up a marine snail shell, hold it in your hand. Feel the smooth, curved surface and the spiral ridges at its pointed end. Most humans appreciate shells for their beauty. We often use them to ...

Sea shells are abundant on the New Jersey shores. There are the black ridged scallop shells that look like accordion fans, the pretty and delicate spiral shells that come in various patterns and ...

All sizes of discarded mollusk shells from around 8,000 years ago in Jingtoushan site in Yuyao, Zhejiang province. [Photo provided to China Daily] It looks like a gigantic seafood market after a ...

Paleobiologist Geerat Vermeij is enthralled with mollusks. Their shells line the surfaces and fill the cabinets and drawers in his office on the second floor of the Earth and Planetary Sciences ...