Evolution of the Dog

In a few hundreds or at most thousands of years we have gone from wolf to pekinese, bulldog, chihuahua… Let’s represent the total time it took to evolve all these breeds of dogs from a wolf by one ordinary walking pace. Then on the same scale, how far would you have to walk in order to get back to Lucy and her kind? — the earliest human fossils that unequivocally walked upright. The answer is about 3.22 km (2 miles). And how far would you have to walk in order to get back to the start of evolution on earth? The answer is that you would have to slog in out all the way from London to Baghdad. Think of the total quantity of change involved in going from wolf to chihuahua and multiply it up, by the number of walking paces between London and Baghdad. This will give some intuitive idea of the amount of change we can expect in real natural evolution.

~ Dr. Richard Dawkins (1941-03-26 age:76),   The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe Without Design