Even if you don’t care much for marine invertebrates, you gotta love Cephalopods. Squid, octopus, nautilus, cuttlefish, they have the stylish panache and quirky evolutionary innovations that other ...

The female nautilus, also known as an argonaut, is an octopus that constructs its own ornate shell or egg case from a substance it secretes from two of its eight tentacles. From a distance, the shells ...

WASHINGTON (CN) – Noting that “hundreds of thousands” of nautilus shells are traded yearly, the National Marine Fisheries Service has proposed the chambered nautilus for Endangered Species Act listing ...

Ammonites are a tale of two textures. The prehistoric cephalopods were composed of fleshy soft tissue (the living bit of the animals) and hard external shells, which, according to a paper published ...