While they may look like plants, sea anemones are sea-dwelling animals, named after the anemone flower. Sea anemones are related to corals, jellyfish and hydra.

The rapidly expanding global trade in anemones as ornamentals for aquariums threatens native populations, as the animals grow and reproduce very slowly.

Photograph by Shek Graham , used under a Creative Commons Attribution-NonCommercial 2.0 Generic license.