Evolution

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In this video, Salman Khan of Khan Academy demonstrates natural selection, using the Owl Butterfly as an example.

In this video, Salman Khan of Khan Academy clarifies concepts from evolutionary theory.

Introductory taxonomy. Discusses the 5 kingdom taxonomy scheme and nomenclature. Describes and lists the kingdoms, phyla, classes and orders of life.

In this video, Salman Khan of Khan Academy explains the theories of Intelligent Design and Evolution.

A step-by-step method for reconstructing a phylogenetic tree.

This website provides lots of information on the evidence and mechanisms of evolution, types of evolution (macro and micro)and current work in the field.