The shell measures 31cm in its longest dimension, and 18cm at its widest. It was once home to a living organism, of course; most likely a species of cold-water Atlantic sea snail called Charonia ...

The green turtle is a large, weighty sea turtle with a wide, smooth carapace, or shell. It inhabits tropical and subtropical coastal waters around the world and has been observed clambering onto ...

HIRONO, Iwate Prefecture--Sea urchin are a culinary delicacy, but because their shells are often seen as too difficult or costly to recycle, they end up getting tossed out in bulk. But a local ...