| Gnac said: If we're bipedal just to make use of our hands, then primates are gonna be fucked in a few million years. |
Well what people view as adaptive can be slightly subjective but the utility of our hands cannot be denied. Humans are also the only extant species of hominids to to display full bipedal locomotion (chimps and gorillas can do it for short periods of time, but they use knucklewalking for the most part). Who knows what species will be around in a few million years.... the genus homo is believed to only have been around 2-3 million years and those early humans have some glaring differences from our present day homo sapiens. For all we know we'll have a mass extinction soon.... we are overdue for one... 2012 anyone?
Edit: And i'll agree about the back problem part about spines being slightly misleading because most of the problems are probably caused by sitting in non ergonomic stuff or in work conditions that are detremental to out spines, but either way our spines are not designed for being upright. See my post above somewhere I explained it a bit better.
