For starlet sea anemones, more food means more arms

A new study finds that starlet sea anemones have the unique ability to grow more tentacles when they've got more to eat.

Credit: Smithsonian Environmental Research Center/Wikimedia
  • These anemones belong to the Cnidaria phylum that continues developing through its lifespan.
  • The starlet sea anemone may grow as many as 24 tentacles, providing there's enough food.
  • When deprived of the chance to reproduce, they also grow more tentacles.
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