> Interestingly, 2-eyed non-predators generally have widely divergent > gazes. Apparently, 3D perception is important when you're hunting, > but a wide field of view is more important when you're being hunted You'll notice that prey has eyes on the side of the head, predators eyes face forward. Compare pigeon/hawk, antelope/lion -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist