natural selection

According to a recent online report from Wired Science, “On one of the Galápagos islands whose finches shaped the theories of a young Charles Darwin, biologists have witnessed that elusive moment when a single species splits in two.” If it were true, this would be very important news. Evolutionary biologists have long recognized that Charles Darwin (despite the title of his most famous book) failed to solve what he called “the mystery of mysteries,” — the origin of species. Darwin argued that it happens by natural selection acting on small variations, but no one has ever observed the origin of a new species (“speciation”) by this process. Evolutionary biologist Keith Stewart Thomson wrote in 1997 that “a matter of unfinished Read More ›