Meet the Pink Sea Anemone That Builds Homes for Hermit Crabs
Scientists have discovered a remarkable partnership deep beneath Japan’s Pacific coast, where a new species of pale pink sea anemone, Paracalliactis tsukisome, builds and expands shell-like homes for hermit crabs. This unique anemone secretes a tough structure called a carcinoecium that enlarges and strengthens the crab’s shell, allowing the crab to grow larger and safer without needing to find new shells. In return, the anemone feeds partly on organic particles and nutrients recycled from the crab’s waste, showcasing a rare and sophisticated mutualistic relationship in the deep sea.
