Evolution is among the most substantiated concepts in science and is the unifying theory of biological science. Charles Darwin co-originated, with Alfred Russel Wallace, the theory of evolution by natural selection. His masterwork, the 1859 "Origin of Species," offered ample evidence for evolution having occurred, as well as the first strong explanation for its mechanism, natural selection. Modern evolutionary theory incorporates these concepts: species change over time; genetic mutations are responsible for the changes; individuals with beneficial genetic mutations will survive preferentially compared with their competitors, in a process known as natural selection; those successful individuals' more numerous offspring will spread the beneficial genetic constructs throughout the population; when enough genetic changes reproductively isolate a population, that population has become a new species. Here you'll find news and information on evolution and the battle with proponents of so-called creation science.
The fossils of a refrigerator-size penguin were so gargantuan that the scientists who discovered them initially thought they belonged to a giant turtle. The ancient behemoth is now considered the second-largest penguin on record.
During the Jurassic period, some feathered dinosaurs — including the 160-million-year-old, crow-size Anchiornis huxleyi — were downright fluffy, unlike many of their sleek, modern bird relatives, a new study finds.
Six million years ago, the shallow swamps of what's now southern China may have been dominated by massive, 110-lb. (50 kilograms) otters with a bite so strong it could crush the bones of small mammals.