Local historians often visit Shell Haven to study the remains of the old refinery and its impact on the community.

I prefer the clam-shell design for my laptop case because it's easier to open.

We shelled out more than we expected for the concert tickets.

At the workshop, the jeweler carefully carved a chicken shell — the shell of a young oyster harvested for pearls and ornamental work — into a delicate inlay.

Researchers observed soft-shell turtles basking on the muddy banks after the rain.

At the first sign of criticism, it's natural to go into one's shell and avoid answering questions.

A soft-shelled turtle surfaced near the dock, causing the children to gasp in surprise.

At the nature reserve, a researcher carefully examined a soft-shell turtle that had been caught for tagging.

A conservation group released a rehabilitated pitted-shelled turtle back into the river where it was born.

Gould's razor shell often buries itself in the tidal flats along the coasts of Japan, China, Taiwan, and South Korea, where it plays an important role in the ecosystem.