The business of building the shell falls to the mollusk's mantle. This thin, soft organ secretes layer on layer of a substance rich in calcium carbonate at the opening, or aperture, of the shell.

This leggy shell belongs to a group of gastropods called the Spider Conchs, and this particular species is the Scorpion Spider Conch (Lambis scorpio), which can neither bite nor sting. The group gets ...

“When Ninjabot hit the aperture the first couple of times, the shell would usually break off a little bit, so pieces of the lip would chip away,” says Crane. But.

They cement their heads directly onto the rock and stay there, but periwinkles suction themselves to flat surfaces at their shell aperture, and shove one foot out to push around, typical of ...

For example, the aperture - the ‘opening’ of the shell - is armed with numerous tooth-like barriers, which are most probably useful against predators.

How do shells get their shapes? These are the forces behind their twists and coils Math and physics, along with a little evolutionary luck, combine to help form some of the world’s most ...

"This may be a big factor, because their tiny shell aperture and epiphragm would prevent inflow of digestive fluids," he said. The snail was study published June 21 in the Journal of Biogeography.

Apple said Friday that it will cease development of its professional image tool Aperture and transition users to the new Photos app in 2015.

For example, the aperture – the ‘opening’ of the shell – is armed with numerous tooth-like barriers, which are most probably useful against predators.

An international team of malacologists discovered a new snail species, Anauchen picasso, in Southeast Asia that exhibits a highly complex and rectangularly angled shell shape, resembling a cubist ...