A sea anemone in a tide pool just below our place. As a kid I was fascinated by tide pools whenever I got a chance to visit the ocean. Of course, now that I have them so close, I don't appreciate them as much as I should.
I'm pretty sure this is an aggregating anemone, the most common kind on the Pacific coast, normally green with pink tipped tentacles. Curiously, they host photosynthesizing algae - a bit like coral. This one was in a shaded spot which might explain why it wasn't very green. They can reproduce both sexually and by fission (producing clones). Colonies that expand into each other's territory fight each other with specialized tentacles.
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