In the 19th century, Charles Darwin and Jean Baptiste Lamarck suggested that giraffes evolved long necks to help them snatch leaves on trees. A later theory usurped Darwin and Lamarck's ...

According to Darwin's theory, giraffes that happened to have slightly longer necks and limbs would have a better chance of securing food and thus be able to have more offspring -- the "select" who ...

Charles Darwin close Charles DarwinAn English naturalist ... Lamarck's theory suggested that the giraffe's original short-necked ancestor repeatedly stretched its neck to reach the higher branches ...