Quote:
Originally Posted by Bengt
Better or different colour vision, e.g. Bluebottle Butterfly have 15 different colour receptors to humans' three.
Better low light vision, probably at the cost of some colour perception, e.g. cats.
Long range vision, e.g. some birds of prey have differently shaped eyes and retina to optimise for this.
Fanciful skin/hair colour is probably easiest to steal from animal pigment genes.
Chameleon skin for fun (I think we would all want chameleon armour for serious business), though I guess in sufficiently cinematic campaigns... :)
Large external ears for better directional hearing, e.g. cats, bats, hares.
Once you have the ears maybe you want sonar as well?
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Most of these could be done with fewer or no disfiguring cosmetics, like including additional tiny corneas and aperatures scattered around the iris so they can focus on specialized and coordinated foveas for different sorts of supplemental vision. Additional auditory receptors can use existing cavities and other avenues for additional sound channels to allow directional hearing along multiple simultaneous axes.
The sonar idea is interesting and in fact its documented that human ears already produce sounds naturally for unknown reasons, but care would be necessary to make it elective.