Richard Lenski: “It is an incontrovertible fact that organisms have changed, or evolved”

Practically since Darwin the various species of finches on the Galápagos Islands have been declared to be decisive, powerful examples of evolutionary theory. An undeniable confirmation of the age-old Epicurean idea that the world arose spontaneously. But exactly how do some bird species on an island group in the middle of the ocean demonstrate such a bold claim?  Read more