Into the 21st century, biologists in laboratories were observing the evolution of bacteria. Charles Darwin wrote largely about pigeons and also wrote about barnacles and earth worms. That was in the 1800s. Into the 21st century some of Darwin's ideas about species development remain fundamental in the study of evolutionary biology. But scientists find fault with a point here or there in Darwin's vast body of recorded thought.
Scientists have described Darwin as having furnished only a crude hypothesis with some erroneous elements, and Darwinism they claim should not be confused with today's factual biological science of evolution.
The biologist Olivia Judson, writes that the field of evolutionary biology "as a whole has been transformed" by the study of genetics and DNA and by computers. She writes that the fusion of genetics with natural selection "has enormously expanded our understanding of how natural selection can work." Judson writes that she would "like to abolish the insidious terms Darwinism, Darwinist and Darwinian" because these give a flawed impression of a field that has moved beyond Charles Darwin. [note]
Natural selection is fundamental to the evolutionism rejected by those called creationists. Biologists view natural selection as: (1) a newly inherited trait giving an organism its opportunity to survive and successfully reproduce and (2) the new trait becomes more common in a population over successive generations. This is the mechanism of evolution. Creationists reject biological development involving serendipity (accident). Creationism as a rival idea to that of natural selection (evolution) draws on traditional religious ideas rather than science. Creationists believe that humans were created by the magic of their god – Krishna, Jehovah (Yahweh) or Allah.
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