• ElJefe@lemmy.ca
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    1 day ago

    Because it’s usually two large crabs duking it out for the larger shell. When one of them inevitably loses, all the other crabs that are lined up, by size, no less, immediately ditch their shells for the next size up. Leaving behind the smallest shell for a large crab. I got to see this first hand at a beach in Mexico when I was a kid. I had no clue what was going on with all these crabs lined up from large to small, it was so cool to watch. But sad too.