QUOTE(Jim Zenor @ May 26 2006, 10:55 PM)

Since the type specimen of Heidelbergensis obviously lived near Heidelberg (in present day Germany), why is it that we came from African Heidelbergensis type hominids and not the ones from Europe?
Good point you brought up Jim. Anthropology is in flux concerning who is in what species or even how many species are known from what exists in museums (forget about what we haven't discovered yet). Homo heidelbergen
sis (thanks for correcting my spelling) evolved in Africa, and then spread to Asia and Europe. An African heidel. population evolved into us (so the current majority thought goes), while the European heidels evolved into Neaderthal.
Some books say heidel., some say rhodesiensis were our immediate ancestors, while others say they are the same species, while at least one other says neither has much to do with us. I guess you gotta pick your own horse. You say rhodesiensis, I say heidel., let's call the whole thing off.
There's a more or less (mostly less) continuous chain of fossils in Africa (and a bit in Israel-Palestine) that roughly shows heidel-rhoden. changing into H. sapiens over several hundred thousand years. In Europe the earliest H. sapiens they have found (so far - who knows what they'll find tomorrow) are about 40K years old and are described as "fully modern" though still not exactly like any modern population alive today.
QUOTE(Jim Zenor @ May 26 2006, 10:55 PM)

I have read that Homo rhodesiensis and H. antecessor were thought probably to be ancestral to modern humans and not Heidelbergensis but I have seen so many €œcurrent€ theories end up being wrong as additional fossils are found that it is hard to take any of them too seriously.
Because of the flux in thinking about exact species and so on, I used the word "heidelbergensis grade" in case the masters of Anthropology decide to make African heidel. a different species from the European. I do the same with "erectus grade" which covers several nominal species (like ergaster) that existed about the same time as erectus with about the same level of technology.
Using my own shorthand is probably confusing, sorry, but it's the only way to wrap my brain around the shifting sands (how's that for mixed metaphors?). I equate rhodesiensis (and antecessor)with heidelbergensis because they were contemporary in time and technology and were a step up in "grade" from the "erectiles".
QUOTE(Jim Zenor @ May 26 2006, 10:55 PM)

Some Heidelbergensis were apparently quite large, perhaps 6 feet plus and very muscular, so growing a foot or two larger does not seem that improbable to me.
I don't think (along with you) that size alone is a very good indicator of separating species. Like you mentioned, it looks like it is pretty easy to evolve small (pygmies) or large (Watusi) bodies even within a given species. If you have other, stronger characteristics to go on, throwing size into the mix doesn't hurt (or add much, for that matter) the argument.
QUOTE(Jim Zenor @ May 26 2006, 10:55 PM)

There is apparently a hypothetical line called the Movious Line running north an
d south through or near present day Bangladesh. Reportedly to the east of this line, only crude Homo erectu
s tools have been found. Some have theorized that these particular H. erectus may have modified bamboo into tools but they are only theories. If I am not mistaken, most of the tools from Homo erectus in China were found in deposits younger than 500,000 years ago and therefore it seems quite possible that some early members of the genus homo (presumably H erectus) were technologically deficient. I could be mistaken, but didn€™t Dr. Meldrum theorize that some fossilized H. erectus footprints indicated a mid-tarsal break?
Yeah, the Asian stone tools are very crude, and rare. I'm not entirely convinced that H. erectus decided to give up his tool making abilities though (I'll grant you that the "bamboo tool kit" hypothesis is just that). All I have to go on is my gut feeling. Living in a tropical jungle instead of a savanna doesn't seem like enough of a kick to make you give up pointy sticks and fire.
Dr. Meldrum is a physical anthropologist who specializes in bipedality, so if he thought that some H. erectus had a mid-tarsul(sp?) break, I would certainly listen hard (and be very surprised; but that's the glory of life, the world view changing surprises that evolution throws up now and then).
By the way,
Meldrum is coming out with his book on Sasquatch in September on Barnes and Noble.