The only sort of universe in which evolution of organisms can occur is one in which the entities have subjective aim. (religion-online.org)
But in the field of evolution of organisms it is practically impossible to set up experiments, given the long timescale these phenomena operate on. (sciencedaily.com)
Researchers are documenting more and more examples of interbreeding influencing evolution of organisms as diverse as butterflies and humans (SN: 3/5/16, p. 18), she says. (sciencenews.org)