Jeff Rotman / Northern Red Anemone (Tealia crassicornis / Urticina felina) feeding on Forbes starfish (Asterias forbesi). Bay of Fundy, Canada, Atlantic Ocean.

Fred Bavendam / Mottled Anemone (Urticina crassicornis), British Columbia, Canada

Pascal Kobeh / Painted anemone (Urticina crassicornis), Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Painted anemone (Urticina crassicornis) from above, Alaska, USA, Gulf of Alaska. Pacific ocean.

Jeff Rotman / Close-up of Painted Urticina Anemone (Urticina crassicornis). Queen Charlotte Strait, British Columbia, Canada, North Pacific Ocean

Sue Daly / Painted / Red anemone (Tealia / Urticina crassicornis) Pacific coast, Canada, August

Fred Bavendam / Mottled Anemone (Urticina crassicornis) group some with tentacles extended to feed, British Columbia, Canada

Jeff Rotman / Northern Red Anemone (Tealia crassicornis) openening at night. Red Sea.

Jeff Rotman / Northern Red Anemone (Tealia crassicornis / Urticina felina) feeding. Bay of Fundy, Canada, Atlantic Ocean.

Jeff Rotman / Northern Red Anemone (Tealia crassicornis / Urticina felina) feeding on plankton. Bay of Fundy, Canada, Atlantic Ocean.

Shane Gross / Painted anemone (Urticina crassicornis) eating a Red sea urchin (Strongylocentrotus franciscanus) on rock wall, Vancouver Island, British Columbia, Canada, Pacific Ocean.

Shane Gross / Close-up of the closed opening of a Painted anemone (Urticina crassicornis), Vancouver Island, Canada, Pacific Ocean.

Shane Gross / Painted anemone (Urticina crassicornis) on rock wall off Vancouver Island, British Columbia, Canada.

David Hall / Rose anemone (Urticina piscivora), Painted anemone (Urticina crassicornis), Brooding anemones (Epiactis spp.), Plumose anemones (Metridium spp.), Bull kelp (Nereocystis luetkeana) and Stalked kelp (Pt...

David Hall / Marine invertebrates including Crimson anemones (Cribrinopsis fernaldi), Painted anemones (Urticina crassicornis), Red soft coral (Gersemia rubriformis), Red sea urchins (Strongylocentrotus franciscan...