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Evolutionary Biology: Issues and Concepts

Continuing Questions

The issues covered on this page are neither comprehensive nor unrelated to each other.  For instance explanations related to altruism are related to the level of selection.  Can altruism be selected for if the unit of selection is the gene? 

Pace of Evolution

Levels of Selection

At what level does natural selection occur?  At the level of the gene, organism, or even groups of organisms?  This list will give you an entry into the discussion.

More Issues and Concepts

Leaf-carrying Ant

from Henry W. Bates.  1863.  The naturalist on the River Amazons.  v. 1, page 24

Altruism and Sociobiology