In Baculites, a straight shelled ammonite, the constructional limits on shell shape resulting from the limited strength of nacre in tension are circumvented by a system of vaults in the phragmocone.

A few fun facts about the many-armed creatures. By Knvul Sheikh Octopuses, squids and their cephalopod cousins have haunted the human imagination for centuries. Their long, unfurling arms and ...

SEATTLE, November 25, 2019 - Computational fluid dynamics can be used to study how extinct animals used to swim. Scientists studied 65 million-year-old cephalopod fossils to gain deeper understanding ...

David Peterman in the AMMLab (Ammonoid Motility Modeling Laboratory) holding a 3-D-printed reconstruction of the planispiral ammonite, Paracoroniceras lyra. David Peterman, Kathleen Ritterbush and ...

Over the past few years, I've spent many hours reading up on — and a morning observing — the smart, sassy behavior of octopuses. These cephalopods, who telegraph their moods by color changes and solve ...

Scientists scanned a fossil of the Jurassic cephalopod Vampyronassa, pictured here, and found clues that it was an active hunter. A. Lethiers, CR2P-SU Finding and studying fossils of Earth’s ...