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Pawnee Prairie Natural Area: This prairie natural area is a remnant of the once-vast tallgrass prairie that covered much of northwest Missouri. Prairie restoration efforts are on-going. Several bird species of conservation concern can be seen on the area during spring and summer. 472 acres 191 ha: Harrison
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, ...
Rockwoods Reservation is a 1,843 acres (746 ha) state forest and wildlife conservation area in St. Louis County, Missouri. It was established in 1938, making it one of the oldest Missouri Department of Conservation areas. Being located close to a major urban area and in a rapidly developing suburban area increases its significance as a nature ...
The Saint Louis Science Center, founded as a planetarium in 1963, is a collection of buildings including a science museum and planetarium in St. Louis, Missouri, on the southeastern corner of Forest Park. With over 750 exhibits in a complex of over 300,000 square feet (28,000 m 2), it is among the largest of its type in the United States.
Charles Darwin's 1859 book, On the Origin of Species, convinced most biologists that evolution had occurred, but not that natural selection was its primary mechanism. In the 19th and early 20th centuries, variations of Lamarckism (inheritance of acquired characteristics), orthogenesis (progressive evolution), saltationism (evolution by jumps) and mutationism (evolution driven by mutations ...
The outcome of evolution is not a perfectly designed organism. The end products of natural selection are organisms that are adapted to their present environments. Natural selection does not involve progress towards an ultimate goal. Evolution does not strive for more advanced, more intelligent, or more sophisticated life forms. [25]
Charles Darwin published On the Origin of Species in 1859, [1] arguing that evolution in nature must be driven by natural selection, just as breeds of domestic animals and cultivars of crop plants were driven by artificial selection. [2] [3] Darwin's theory radically altered popular and scientific opinion about the development of life. [4]
The article was the first announcement of the Darwin–Wallace theory of evolution by natural selection; and appeared in print on 20 August 1858. The presentation of the papers spurred Darwin to write a condensed "abstract" of his "big book", Natural Selection. This was published in November 1859 as On the Origin of Species.