Archived posting to the Leica Users Group, 2003/11/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 10:41 AM 11/19/03 -0700, Kit McChesney wrote: >The reason war is so "robust" as you say, as ever, is because it is comes >from the part of the brain that is the most primitive, that hind-end part we >share with reptiles. A minor quibble, Kit. Mammals (synapsids) are not descended from lizards, snakes, and crocodiles (diapsids), while turtles (anapsids) are an entirely different matter as well. All three groups descend from the advanced amphibians of the late Carboniferous, so, yes, we do share some brain structure with the others but, really, the organization is quite a bit different. It is best to realize that, today, we have the ambphibia, anapsida (turtles), synapsida (mammels), and diapsida (lizards and snakes, the tuatara, crocodilians, and archosaurs (birds)). Marc msmall@infionline.net FAX: +540/343-7315 Cha robh bąs fir gun ghrąs fir! - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html