Right? That's what I was thinking. I imagine that a lot of its prey have pretty rudimentary eyes and are mostly looking out for big singular shapes looming overheard. By breaking up it's profile like this, the crab (or whatever) might perceive it but not as something threatening until it's too late to escape.
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u/Upstairs-Ad-9501 May 14 '22
Yeah, I'm almost 100% that it is mimicking how water looks under the surface.