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guard-of-terra
12y ago
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They absolutely aren't! Mammals are Synapsids, reptiles and birds are Sauropsida. They branched before most of brain development in both groups took place and since then we don't share ancestors.
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biggfoot
12y ago
Hmm. Interesting. So there is absolutely
no
basis to a reptilian brain component thingie?
guard-of-terra
OP
12y ago
There might or might not be - we still have some our distant evolutionary ancestors; but the nice name for it ("lizard brain") is false.
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