The artillery crew loaded a segment shell into the breech, readying it for the barrage.

Before hoisting the beam, inspect the pulley shell for cracks or corrosion.

The geologist collected several samples of shell marls along the riverbank to study their fossil content.

Coastal archaeologists carefully sampled the shell marl to analyze the ancient shoreline ecology.

She found a rare lentil shell washed up among the seaweed.

While strolling along the reef, I spotted a beautiful harp shell nestled among the coral.

The soldier carefully examined the old blind shell found near the training range before disposing of it.

On the shelf by the window sat a single porcelain shell, smooth and lustrous from years in the tide.

On the sandy reef, the carrier shell proudly displayed a mosaic of pebbles and shell fragments glued to its back.

The mason shell attaches pebbles and fragments of shell to its own shell as camouflage.