The Comb-jellies or Ctenophores are a group of jelly-like aquatic animals. They're largely colourless (well, most of them are. There are exceptions, though), but as they move their rows of propelling cilia they scatter light and look as though they have moving rainbows, more or less.
There are some ctenophores that are bioluminescent (that is, they can produce their own light), but most of the ones you see on those deep-sea submarine documentaries are just shining in the light that the filming equipment uses.
This doodle is VERY loosely based on a comb-jelly known as the Sea-gooseberry (Pleurobrachia pileus), which is found world-wide. Well, in the oceans at least. I have a feeling that you'd have a time finding them here in Alberta.
I wish I'd had my black paper to do this one on, but since I don't have it with me you get carbon pencil scribble instead. Ah well. You work with what you have, right?
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