I thought it was tunicates (sea squirts) because they are closely related to ver... | Hacker News

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		beedeebeedee on May 25, 2023 \| parent \| context \| favorite \| on: Comb jellies proven to be the sibling group to all... I thought it was tunicates (sea squirts) because they are closely related to vertebrates and start off free swimming with a notochord. (I also heard the joke as being about Americans- they are curious and thoughtful while young, but then settle down, become couch potatoes in front of the tv and digest their own brains). Either way, it is a cute joke and interesting marine biology.

Phemist on May 25, 2023 [–]

> tunicates (sea squirts)

Could actually be.., perhaps I am miss-remembering :)

Tagbert on May 25, 2023 | [–]

Tunicate is more likely. the Anemone larva result tiny medusa and both larva and adults have nerve networks.

Tunicates and Echinoderms seem to have evolved from bilateral ancestors like the ancestors of chordates.

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