Hyperlinked article about the appearance of a new species of life.
Kimball's Biology Pages: Speciation
Outlines to role of geographic isolation, ecological opportunity, hybridization, competition, and adaptive radiation in the formation of new species.
Evolution 101: Speciation
Allows readers to explore different ways to define a species and learn about the various processes through which speciation can occur.
Ensatina eschscholtzi: Speciation in Progress
Classic example of Darwinian evolution. This lungless salamander is now in the process of splitting into two or more species by means of gradualism.
Global Change: The Process of Speciation
Addresses the question: What is a species, and what are the different ways it can be defined?
Models of Speciation
Historical phenomenon that is a fundamental issue in evolutionary biology.
Biology Century: Speciation
Covers what a species is, modes of speciation, and rates of speciation.
Bead Model of Speciation: A Demonstration
Graphic depiction of a model of an evolutionary branching process described by Martin L. Weitzman in Biodiversity Loss: Economic and Ecological Issues.
Evolution Library: Evolution of Diversity
Collection of articles looking at how individual species arise, how systematists classify them, or how many species are currently living on the planet.