The Case of the Disappearing Anus

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One of the ways we learn about the evolutionary tree of life is the presence of an anus in critters, so imagine the surprise when a critter we thought was our ancestor turned up without one! And there may be new evidence that dinosaurs snacked seasonally!

Hosted by: Hank Green

Corrections:
3:03 The video refer to Saccorhytus as an ecdysone. The correct term is ecdysozoan.
3:15 The video incorrectly stated "ecdysones generally do have anuses." It should have said "ecdysozoans generally do have anuses.

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Sources:
https://doi.org/10.1038/s41586-022-05107-z
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Видео The Case of the Disappearing Anus канала SciShow