Worm Defies Tradition, Stores Gut Bacteria in Gills Instead

What—just because they’re called gut microbes, you’ve been keeping them in your colon? How unoriginal.

This is Bankia setacea, also called the Northwest or feathery shipworm. Humans usually pay attention to shipworms only when they perform their namesake activity: burrowing face-first into our boats or docks and eating their way through. Shipworms are bivalves, like clams or scallops, but their shells are shrunken into a set of rasping tools at each worm’s front end.

Animals that subsist

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