Re: dogs cannot become cats
Technically, yes, many generations down the line you could end up with a dog-like animal which has the heritage of a cat, its DNA would still be cat, and it would retain cat-like aspects and wouldn't be identical - it would reach a local maxima that makes it fit for purpose to the environment. I'm only going by the facts i know, of people who modify genes for a job, build gene sequences one nucleotide at a time, who use reproduction experiments to track the propagation of an altered genetic sequence through generations. Also having researched genetic algorithms for solving complex polynomial problems with multiple solutions - every time a genetic solving approach is far more powerful than a design process. Its as astounding to me that people don't believe in evolution as it is that there are some people who still believe the earth is flat. The research and information is all out there if you take the time to look at it and understand it.