👉 Physoceras is a genus of marine invertebrates that are known for their unique adaptation to high-oxygen environments, such as deep-sea hydrothermal vents or under water pressure. They have a hard exoskeleton and a complex muscular system that allows them to breathe underwater and survive on the surface. Physoceras are also known for their ability to form large colonies of bacteria called "phytoplankton" which they use for food, energy production, and growth.
