Charles Darwin and Alfred Wallace were the first to formulate a scientific argument for the theory of evolution by means of natural selection. Evolution by natural selection is a process that is inferred from three facts about populations: 1) more offspring are produced than can possibly survive, 2) traits vary among individuals, leading to different rates of survival and reproduction, and 3) trait differences are heritable

One fact is all those were prior to molecular biology, even cell biology. Just imaging how a virus changing to a cell, a mouse changing to a dog, or a monkey changing to a man. Are those likely to be true to you?  Not metioning that monkey and man have different numbers of chromsomes.

We do have different colors. DARWIN COULD BE REALLY RIGHT ON THAT!

Cold places have white; warm places have yellow; too much sun, got black! Just a thought for tea time!