Dr. Dan KillamI once was asked by a kindergartner if clams sleep. I was stumped, and we actually have no idea! We know many bivalves have strong biological clocks, often showing circadian rhythms in activity. But as to whether they sleep? No one knows! #clamFacts
Albert Cardona@dantheclamman Given that clams have a nervous system, it'd be huge news if clams didn't sleep.
Steve GisselbrechtYup! Flies sleep, and they are of course also protostomes, so we know that sleep predates the last common ancestor of clams and people. And I don't think there are examples known of sleep disappearing in any lineage that has it?
@stevegis_ssg @dantheclamman Well, parasitic life has drifted far and wide, surely there are examples there.