Snail shells are often colorful and strikingly patterned. This is due to pigments that are produced in special cells of the snail and stored in the shell in varying concentrations. Fossil shells, on ...

Snail shells are often colourful and strikingly patterned. This is due to pigments that are produced in special cells of the snail and stored in the shell in varying concentrations. Fossil shells, on ...

Fossil shell of Pithocerithium rubiginosum (height is 1.5 cm) from the Miocene sediments of Nexing in Austria (left) and isolated reddish polyene pigments on calcium fluoride disc (diameter of disc is ...

For National Snail Day, museum research fellow Melissa Betters explores the mollusks’ notable nature Melissa Betters A shell from the Cuvier tropid snail, a terrestrial species native to Madagascar, ...

Eleanor has an undergraduate degree in zoology from the University of Reading and a master’s in wildlife documentary production from the University of Salford. Eleanor has an undergraduate degree in ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist’s reconstruction of Shishania aculeata as it would have appeared in life as viewed from the top, side and bottom (left ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

Using shells from the recent fossil record, researchers have determine that interactions between predator and prey in the northern Adriatic Sea have significantly declined due to human activity. If ...