This means that they will not break or fall over easily. There’s another way of making a structure. A shell structure is just made of a thin, curved outer layer and it’s hollow inside.

Back in 2011, Swedish explorers Peter Lindberg and Denis Asberg were combing the Baltic Sea for treasure when their sonar radars detected a jaw-dropping structure ... it was the shell of a ...

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 ...

An unusually shaped bin has been installed in a seaside town for people to dispose of their plastic bottles. The large metal bin has been designed as a giant sea shell, and was the concept chosen ...

While all other sea turtles have hard ... Ridges along the carapace help give it a more hydrodynamic structure. Leatherbacks can dive to depths of 4,200 feet—deeper than any other turtle ...