{{quotebox|The term evolution can have different meanings, such as “change over
time” or even “progress.” However, in modern [[biology]], evolution centers
on two ideas. The first is that all the organisms we see are descended from
a [[single common ancestor ]] somewhere in the distant past. The secondfoundational idea is that an [[unguided ]] process of [[natural selection ]] (“survival“[[survivalof the fittest”fittest]]”) has the power to produce fundamentally new forms of lifethrough [[random mutationsmutation]]s. This view of evolution is known as “Neo-
Darwinism.” [http://www.getexpelled.com/_downloads/expelled_leadersguide.pdf]}}