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LINK UPS BRACELETS : There still is some of this in the idea that there is a linear "progression" of hominids, maybe something like Homoerectus to Homo neanderthalensis to Homo sapiens. So, somewherein that "chain", we look for "missing links". What we should really look for is, just like in any otherpart of the "tree of life" is a number of species, each successful on its own terms (not merely as part of the "progress"to modern humans). In other words, just like any place else welook in the evolution of life over time.Ok, what I meant was, why and how did the first one of us began to think.That really depends on how narrowly you define "thinking." The firstevidence of foresight is just under 2 million years ago. _Homo erectus_toolmakers in eastern Africa made what we call "Acheulean hand-axes" thatwere sharpened, chipped, teardrop-shaped stone tools. Previous hominidshad made stone tools, but the tools tended to be very simple and"expedient." They were made at the time that they were used, from materialthat was right in the area, and discarded as soon as the hominid wasfinished using it.
LINK UPS BRACELETS : Acheulean hand axes were made of a very specific type of stone, and werechipped to a very specific pattern. The fact that these stone toolscontinued to be manufactured in the same shape for thousands of years tellsus that the people making them had an idea in their heads about what theywere going to make, before they started making it. In other words, theyweren't just whacking a couple of rocks together and hoping for the best;they were working towards a deliberate, pre-conceived plan. Beause these tools were made of a very specific type of silicon-rich flintor chert, we know that _H. erectus_ traveled to a source for this type ofstone, and made the tools before they were needed. That means that thesepeople had the ability to imagine things that might happen in the futureand prepare for them. For example, they may have thought they would findsome animal to eat, and that if they did, they would need a tool to killand butcher the animal and break its bones for marrow. (We don't know forcertain that they hunted animals, they may have scavenged animal corpsesthat were killed by other predators, but even so, we know they hadforesight.)
LINK UPS BRACELETS : Earlier hominids may have had foresight as well, but the development ofcomplex, regularly shaped stone tools (which preserve well) is the earliestevidence we have of this. Earlier hominids may have made complex tools outof perishable materials like wood, bone, or hide, but if so, these toolshave decayed and we can't recover them. So, foresight is first evident at around 2 million years ago (actually 1.8million is probably more accurate, but "guestimates" are acceptable. :-) Other "mental skills" appear later in time.The earliest evidence of decoration, which hints at a sense of aesthetics,appears at around 80,000 years ago. In some contexts (also in Africa) wehave discovered shells that look like they were used as beads, and we'vediscovered the remains of pigments made from ground-up minerals that wereprobably used as paint. We haven't discovered what these early
LINK UPS BRACELETS : "This" being the timeline, or the protocol? If the former, one good quickreference is Richard Klein's article _Anatomy, Behavior, and Modern HumanOrigins_ p. 167-198 in /Journal of World Prehistory/ Vol 9:2, June 1995. Klein sort of sums up the basics (as of five years ago) and his referencesinclude most of the "big names." If you meant guidelines on protocol, yeah, that would be great. AFAIK,talk.origins doesn't have a protocol FAQ available. It's a pretty informalgroup, AFA top, bottom, or interspersed replies, as long as the previouspost is quoted. Since we don't all view the group threaded, quoting ispretty much a requirement if you want people to be able to follow you. Bottom replies are better than top ones, IMHO, particularly in long posts,for the same reason. Bottom replies preserve conversation linearity, so ifyou come in on a thread already in progress, it sequences:Q1A1Q2A2Q3part apart bpart cA3ab
LINK UPS BRACELETS : Most vertebrates think. The rest of the apes certainlyall think, and even reason abstractly, so there isn'tany "missing link" in that respect.Hello all. I am a returnee to the group after about a ten year hiatus.I have been lurking for a few days and wonder whatever happened toBob Bales, Richard Day, Chris Colby and a few of the othersI used to see regularly.About 35 or 40 years ago I read a neat book entitled"The Origin of Consciousness in the Breakdown of the Bicameral Mind" I just checked on Amazon and it apparantly is still in print. The thrustof the book is that self-awareness has come about as a result of theevolutionary development of pathways between the right and left hemispheresof the brain. The inference is made because of the seeming loss the senseof self when these pathways are severed.
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