Sentences with phrase «evolutionary gradualism»

He recounts what he sees as the differences between evolutionary gradualism and punctuated equilibria, though not in any depth; nor does he mention the adaptationist / neutralist controversies, instead assuming that everyone accepts the strict Darwinian model.

Not exact matches

Chad has repeatedly betrayed: his non-comprehension of what a species - level change is (i.e. the focus of PE) and that this most minor of changes does not require a wholesale reordering of a genome; his inability to grasp that gradualism, although the clear minority in the fossil record, is present in various lineages (See Gould's various references to Foraminfera); his non-comprehension of the role of historic genetic contingency (i.e. that silent mutations can coalesce into rather dramatic novel functionality, e.g. Lenskis» E. coli); that the nodes of PE are more than sufficient for the requisite species - level evolutionary changes (See Pod Mrcaru lizards); etc, etc..

The very fact that there are intermediate examples of anatomical features like wings only further validates the evolutionary law of gradualism.

Gradualism and punctuated equilibrium can co-exist — that some creatures have changed gradually and others have had long periods of stability doesn't invalidate evolutionary theory.

The acceptance of punctuated equilibrium put to death the then prevailing thought that gradual change was the evolutionary mechanism of speciation (Darwinian phyletic gradualism, which had held sway for > 100 years, was utterly debunked)

The first inkling that something might be wonky with gradualism — as Darwin's slow process of evolutionary change is known — did not emerge from biology.