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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 comm
by nextaccountic 3y ago
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.
- dillydogg 3y agoWhat? 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
- gowld 3y agohttps://en.wikipedia.org/wiki/Synapsid 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