Your Brain Is Not An Onion With A Tiny Reptile Inside (2020)

Re:Your Brain Is Not An Onion With A Tiny Reptile Inside (2020) by nextaccountic on Monday September 18, 2023 @01:31PM (#37559219)

We're reptiles (as are all mammals, all birds, etc).

My understanding of that is that all reptiles have a basal ganglia, because it was inherited from the common ancestor of reptiles.

And non-reptiles don't have a basal ganglia because their ancestors didn't have one.

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Re:Your Brain Is Not An Onion With A Tiny Reptile Inside (2020) by dillydogg on Monday September 18, 2023 @01:52PM (#37559488)

What? Mammals appear in a separate branch of amniotes apart from Reptiles/Birds/Crocodilians

Mammals and reptiles share a common ancestor with an ancient amniote, not a reptile

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Re:Your Brain Is Not An Onion With A Tiny Reptile Inside (2020) by gowld on Monday September 18, 2023 @04:15PM (#37561403)

https://en.wikipedia.org/wiki/Synapsid

> Synapsids[a] are one of the two major clades of vertebrate animals that evolved from basal amniotes, the other being the sauropsids, which include reptiles (turtles, crocodilians and lepidosaurs) and birds.

> the only extant group that survived into the Cenozoic are the mammals.

> The animals (basal amniotes) from which non-mammalian synapsids evolved were traditionally called "reptiles".

> It is now known that all extant animals traditionally called "reptiles" are more closely related to each other than to synapsids, so the word "reptile" has been re-defined to mean only members of Sauropsida (bird-line Amniota) or even just an under-clade thereof

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