These exceptionally slowly growing crabs, with a massive adult body, are among the most colorful animals found in the Northeastern Pacific. They live most of their life in deep water, but come up into the shallows to molt, and incidentally display their vivid freshly molted color.
(The big feather dusters )… need to be in an aquarium that has a very evident green tint when viewed from a couple of feet away.
In a very nice, easily understood, short paper, available online, free of charge, L, Dougherty and collaborators examined the “disco flashing” seen in the edges of the mantle of the bivalve Ctenoides ales.
Recent research has shown that Ctenophores have a unique genome and nervous system structure, not related to those seen in any other animals.
… the best recent example I have seen is a blog detailing an example of a large green anemone from the Pacific coast, shown here eating the carcass of what is identified as a common murre chick, much larger than itself.