dimecres, 4 de febrer del 2009

Charles Darwin

Charles Robert Darwin (12 February 1809 – 19 April 1882) was an English naturalist who realised and demonstrated that all species of life have evolved over time from common ancestors through the process he called natural selection. The fact that evolution occurs became accepted by the scientific community and much of the general public in his lifetime, while his theory of natural selection came to be widely seen as the primary explanation of the process of evolution.
At Edinburgh University Darwin neglected medica.

l studies to investigate marine invertebrates, then the University of Cambridge encouraged a passion for natural science.

He was writing up his theory in 1858 when Alfred Russel Wallace sent him an essay which described the same idea, prompting immediate joint publication of both of their theories.

When the Beagle returned on 2 October 1836, Darwin was already a celebrity in scientific circles as in December 1835 Henslow had fostered his former pupil’s reputation by giving selected naturalists a pamphlet of Darwin’s geological letters.
Darwin visited his home in Shrewsbury and saw relatives, then hurried to Cambridge to see Henslow, who advised on finding naturalists available to catalogue the collections and agreed to take on the botanical specimens. Darwin’s father organised investments, enabling his son to be a self-funded gentleman scientist, and an excited Darwin went round the London institutions being fêted and seeking experts to describe the collections. Zoologists had a huge backlog of work, and there was a danger of specimens just being left in storage.
Charles Lyell eagerly met Darwin for the first time on 29 October and soon introduced him to the up-and-coming anatomist Richard Owen, who had the facilities of the Royal College of Surgeons to work on the fossil bones collected by Darwin. Owen’s surprising results included gigantic extinct sloths, a near complete skeleton of the unknown Scelidotherium and a hippopotamus-sized rodent-like skull named Toxodon resembling a giant capybara. The armour fragments were from the Glyptodon, a huge armadillo as Darwin had initially thought. These extinct creatures were closely related to living species in South America.

1 comentari:

Sònia ha dit...

Well done!
Don't forget to post your composition about your first day at school