Summary:
- Scientists have discovered a new species of pink sea anemone that helps hermit crabs by building and expanding shells for them.
- The sea anemone attaches itself to the shells that hermit crabs use, and as the crab grows, the anemone expands the shell to accommodate the crab's larger size.
- This unique symbiotic relationship between the sea anemone and the hermit crab benefits both species, as the anemone gains protection and the crab gets a custom-fitted home.