: ***Not only that, but it seems to have something to do with bipedalism and our superior brain. Full sterioscopic, long range, color vision. The combination of these with the ability to move the eyes without having to move the head seems to allow a greater judgement of distance, depth, and the tracking of not only movement but the singling out of stationary objects which are important to us. Thus we have a most effective : means of hunting gathering, and manipulating our environment, along with all our other specialized equipment such as our brain(intelligence), hands(manipulation), speech(communication). : Of course I am not am expert, but like to get involved, and learn more through posting/reading.

: We can distinguish by hue, form, relationship, and brightness. In general, they are unsurpassed by any other eyes in the world. : (Humankind Emerging, Campbell/Loy. Pg.113-115) ------------ And evolution (biology) can explain all those developments, even if I can't sometimes. I don't claim to be an expert, this field just interests me. :o)

I'll add this real quick. Our ancestors (which are the ancestors of modern apes too), found that upon leaving the jungle environment, were confronted with the unfavorable prospect of being unable to gather food in the old way (simply picking fruit, bugs). They were already omnivores, but had to increase their range of diet to include more meat, just to survive. Thus, they had to become hunters. But to do this, they had to compete with already specialized carnivores of the African savanah. Our comparably puny bodies put us at a disadvantage, but we were smarter. Our apelike ancestors were already social animals, and travelled in groups. Now this had to be improved upon, we had to become more specialized. So the increased need for collaborating efforts in a hunt was developed gradually through language (obviously not as complex as it has become today). We became bipedal, which had the double benifit of increasing manipulating ability of our hands (create tools), and seeing above the tall grasses of the plains. We had to be better runners than our jungle ancestors (bipedal condition also facilitated this). As individuals, pre-humans would not have stood a chance against the specialized savanah hunters, but working together as a group, put us over the top. Of course these individual attributes (language, bipedalism, increased hand manipulation) did not just spring up one after through lightning fast evolution. They each evolved gradually, each aspect individual driving the other aspects on. A form of co-evolution took place. This group hunting also is the first insight into what human societies may have been. Thus ideas of society codes, and ethics may be more deeply rooted in us than we think. They may be a lasting evolutionary imprint.

If you want to learn more about this, Desmond Morris' publications are really good. You may have seen "The human animal" series on the learning channel. Very fascinating.