How does a nautilus swin?

Answer 1

A nautilus swims by expelling water from its chambered shell through a siphon, which creates a jet propulsion effect. By contracting its muscles, it forces water out, allowing it to move backward. The nautilus can also adjust its buoyancy by regulating gas and liquid within its shell's chambers, enabling it to ascend or descend in the water column. This combination of jet propulsion and buoyancy control allows for efficient movement through its marine environment.