Comment Re:Not Quite the Same (Score 1) 63
But it is the same forces in play. The limitations of the physics (and thus chemistry and thus biology) that drive structure and function of DNA, protein, etc limit the possible ways that nature can create ways to solve evolutionary problems. So whether it is a photon sensing system or pads on lizard, given the toolkit that nature (yeah, I'm anthropomorphizing a bit, sorry) has, it uses it in a similar fashion to get to a desired end result.