Though now extinct, ammonoids (a group of marine mollusks with shells) evolved for 350 million years, always with a tendency toward increasingly elaborate shell structures. Scientists have studied ...

This is a preview. Log in through your library . Abstract Tracking the geometry of all 597 ammonoid genera from the Lower Devonian into the Lower Triassic, a 145-Myr period that spans three mass ...

Software for designing shell structures can find the best balance between weight and strength, and assist with trade-offs that accompany such design tasks. San Diego, Calif. Anyone designing ...

Using the Very Large Telescope (VLT), Chilean astronomers have observed a cataclysmic variable known as V1425 Aql. As a result, they have found that this system hosts an arc-shaped nova shell. The ...

A tiny new snail species discovered in Thailand has been named after legendary artist Pablo Picasso, due to the strange, complex geometric patterns seen on its shell. The species, measuring only 3 ...