The history of most fossil species includes two features particularly inconsistent with gradualism: 1. Stasis. Most species exhibit no directional change during their tenure on earth. They appear in the fossil record looking much the same as when they disappear; morphological change is usually limited and directionless. 2. Sudden appearance. In any local area, a species does not arise gradually by the steady transformation of its ancestors; it appears all at once and 'fully formed.'

There is no gene 'for' such unambiguous bits of morphology as your left kneecap or your fingernail. [:] Hundreds of genes contribute to the building of most bo…

Evolution is a theory of organic change, but it does not imply, as many people assume, that ceaseless flux is the irreducible state of nature and that structur…

The world, unfortunately, rarely matches our hopes and consistently refuses to behave in a reasonable manner.

I want to argue that the 'sudden' appearance of species in the fossil record and our failure to note subsequent evolutionary change within them is the proper p…

There is no general reason to expect evolution to be progressive - even in the weak, value-neutral sense. There will be times when increased size of some organ…

Since we proposed punctuated equilibria to explain trends, it is infuriating to be quoted again and again by creationists-whether through design or stupidity, …