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Social forces appear to have directed much of the evolution of humanity but we are still subject to natural selection.

Primate taxonomy (see books: phylogeny, taxonomy, systematics) is in a state of flux due to the discoveries made in primate genetics.

Very simply, there are five basic principles to this theory: [1] Variation has a genetic origin (i.e.

This formed the foundation of the neo-Darwinian evolutionary theory.

At the onset of the 20th century, most scientists had accepted the great antiquity of the earth, the theory of evolution and that humanity had evolved from an ape ancestor, but by 1908 the fossil evidence of early man was scarce.

Biologists included principles from genetics in evolutionary theory during the 1920s and 1930s.

Evolution & Ecology " (see its HOME PAGE .) The result is that some areas, such as the glossary are shared.

Widgets Human evolution from an ancestral primate species is not a vague hypothesis, but a historical fact.

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