Albino -- a defect?

[RedSidedSPR]

Like what?

[mb90078]

Like what?

Change in environment...suppose that something caused the ground to be lighter in color...they would blend in better against a white background as an albino or snow. It seems far-fetched, but this situation has played out probably hundreds of thousands of times (or more) in natural history...where an obscure mutation changed from being disadvantageous, to being advantageous due to environmental change.

The one that sticks out in my head is white and black moths. I wish I remembered more of the details of it, but it's been a few years since I've studied the subject. Natural Selection controls everything.

EDIT: To illustrate what I was saying (a long read): Natural Selection and Speciation
Or to basically get at my point in single picture form:
http://biology.clc.uc.edu/graphics/bio106/nat-sel.jpg