https://www.livescience.com/cambrian-fossil-embryo-with-brain
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Penis worm's ancient cousin fossilized with its doughnut-shaped brain intact - Livescience.com
10/4/22 at 11:01pm
Organization
Live Science
Author
Nicoletta Lanese
Details
20 words
Summarize
general Penis worm Livescience.com
The fossil dates to the Cambrian.
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