CrowCross
Well-known member
Which resulted in a loss of information...de-evolution. If you turn the lights back on and give it time...the eyes will not reappear.A good example, CrowCross, thank you for that.
The environment in a cave contains the information "there is no light here". That information is copied, by evolution, into the DNA of the fish living in that cave. That information results in resources being diverted away from eyes, which are useless in a dark cave, and towards other requirements.
It would be like having two cats of the same kind that departed the ark...and after a little while...two of them bred and a cat with no stripes amongst the litter resulted.
The no stripe cat later on bred with a striped cat and a litter of no stripe cats were born. The no striped cats lost the ability to produce stripes as the genetic information which was once present was lost. Later on a scientist came along and labeled each cat two separate species...assuming the striped cat evolved from the no stripe cat.