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Marine Biological Laboratory: What's New Under the Sun? Offering Alternate View on Evolutionary Novelty
July 30, 2022
WOODS HOLE, Massachusetts, July 30 (TNSjou) -- The Marine Biological Laboratory issued the following news:

Many crustaceans, including lobster, crabs, and barnacles, have a cape-like shell protruding from the head that can serve various roles, such as a little cave for storing eggs, or a protective shield to keep gills moist.

This shell (carapace), it's been proposed, didn't evolve from any similar structure in the crustacean ancestor, but appeared de novo (o . . .

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