Showing results by author "Nadejda Josephine Msindai"

English naturalist and geologist Charles Darwin first published On the Origin of Species in 1859. The idea of evolution and that all earth's species have descended from a common ancestor had already been around for some time. What was new about Darwin's work was that it found a way to explain evolution using a theory called natural selection. This claimed that species change in small ways, gradually, over long periods of time; the individuals who happen to be best suited to their environment survive.