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While hiking the beach at Cape Scott in British Columbia last summer, I kept on seeing these weird pieces of organic flotsam. I'm familiar with kelp, dead jellyfish, sea urchin shells, etc... but these seemed really different. And I've never seen them before anywhere else in BC or elsewhere.

First, from a distance when wet, they look more like dead organs of some fish or sea mammal, because of the red and white coloring.

Second, if you touch them they actually are dry and have the feel and consistency of rubbery silicone kitchen utensils.enter image description here

Yes, I can see how something like a plant or jellyfish may dry out to that texture. But I'd expect that to slime up/lose consistency as soon as it got wet again.

enter image description here

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    Maybe it actually is some sort of manmade substance. Can you put some in a fire and see if it melts? (An outdoor fire, of course; plastic smoke is not something you want indoors.) Make note of what texture it is after partially burning, like whether the partially burned bits crumble to ash, or bead up like solidified droplets of melted plastic. – csk Feb 24 at 20:57
  • I don't think so. They did look organic and they were all topping out at about the same size. If it had parts of some ripped up manufactured thing, the sizes of the bigger pieces would have varied more, I think. Anyway, point is moot, this was last summer and I did not bring any back. – Italian Philosophers 4 Monica Feb 25 at 5:29
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    Could it be a piece of molted shell from a crab or other crustacean perhaps? – Nate W Feb 25 at 18:11
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    Has some similarities to skate egg casings? Or sea weed bladder? – Jon Custer Feb 25 at 21:33
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    Those look a lot like sea weed to me. I'd suggest having a look for images of seaweed other than kelp – Rory Alsop Mar 4 at 10:16

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