The chambered, or pearly, nautilus (Nautilus pompilius) is a charismatic cephalopod species known for its exceptional spiraling, chambered shell. It belongs to a family that has barely changed since ...

The hard shell of the nautilus encloses a series of chambers. “The animal resides in the shell’s largest chamber, while the other chambers function like the ballast tanks of a submarine ...

The chambered nautilus (Nautilus pompilius) shell also features in the collection. According to English Heritage, it is among the most coveted of natural history items for collectors. The animal ...

The Nautilus belauensis, often called the Palau nautilus, is a species of cephalopod known for its beautiful, chambered shell. With its spiral shape and intricate design, the nautilus is a direct ...

The animals constantly grew new shell material as they aged, but the their bodies always remained in the outer chamber. The walls that separated each chamber helped protect the shell from being ...

though the shell is more similar to that of a nautilus.' Ammonites were born with tiny shells and, as they grew, they built new chambers onto it. They would move their entire body into a new chamber ...