I don't know where to put whales. I'm sticking them here, but I don't have any reason for it.

Splitting and gradual divergence of genera is exemplified very well and in a large variety of organisms.

Most of the dogmatic religions have exhibited a perverse talent for taking the wrong side on the most important concepts in the material universe, from the structure of the solar system to the origin of man.

A rill in a barnyard and the Grand Canyon represent, in the main, stages of valley erosion that began some millions of years apart.

Human judgment is notoriously fallible and perhaps seldom more so than in facile decisions that a character has no adaptive significance because we do not know the use of it.

Species evolve exactly as if they were adapting as best they could to a changing world, and not at all as if they were moving toward a set goal.

The fact -- not theory -- that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in popular opinion that the distinction must be stressed.