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By the end of the 1700s, paleontologists had swelled the fossil collections of Europe, offering a picture of the past at odds with an unchanging natural world. And in 1801, a French naturalist named Jean Baptiste Pierre Antoine de Monet, Chevalier de Lamarck took a great conceptual step and proposed a full-blown theory of evolution.
Oct 7, 2015 · French naturalist Jean Baptiste Lamarck, for instance, suggested that the giraffe neck lengthened as the animals stretched to reach leaves high in trees, with a “nervous fluid” flowing into ...
Jean-Baptiste Lamarck proposed that acquired characteristics were inheritable. For example, as a giraffe stretches its neck to browse higher in trees, the continuation of the habit over an extended period results in a gradual lengthening of the limbs and neck.
- The Editors of Encyclopaedia Britannica
Though he was building on the work of his mentor, Count George-Louis Leclerc de Buffon, Jean-Baptiste Lamarck (1744-1829) is often credited with making the first large advance toward modern evolutionary theory because he was the first to propose a mechanism by which the gradual change of species might take place. Also, he extended the ...
Aug 5, 2009 · On 14 August 1809, Jean Baptiste Lamarck presented the two volumes of his most important book, ... usually a giraffe, wishing to reach the upper branches of trees, and acquiring a long neck ...
- Dan Graur, Manolo Gouy, David Wool
- 2009
May 17, 2016 · The French naturalist Jean-Baptiste Lamarck held that a giraffe was merely an antelope whose progenitors had strained their necks toward higher and higher branches for food. Charles Darwin gave ...
Lamarckism. evolution. taxonomy. Jean-Baptiste Lamarck (born August 1, 1744, Bazentin-le-Petit, Picardy, France—died December 18, 1829, Paris) was a pioneering French biologist who is best known for his idea that acquired characters are inheritable, an idea known as Lamarckism, which is controverted by modern genetics and evolutionary theory.
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