Understanding Evolution


What are species anyway, and how do new ones evolve?

Here, you can explore different ways to define a species and learn about the various processes through which speciation can occur. This section also addresses the topics of cospeciation — when two lineages split in concert with one another — and modes of speciation that are specific to plants.

Let's start by defining a species.

Speciation in action


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Understanding Evolution © 2019 by The University of California Museum of Paleontology, Berkeley, and the Regents of the University of California