Jean Baptiste Lamarck August 1st 1744- December 18th 1829

Early Life Born Benzentin-le-Petit Was sent to Jesuit school in Amines Received classical education until 15 At age 15 father died and joined the military

Early life cont. While in military began to study plants At age 24 left military and studied medicine in Paris for 4 years At medical school became interested in Meteorology, chemistry, and shell collecting

Plants of France In 1779 Lamarck published his first of many books Flore François or Plants of France a 3 volume set Was elected into the Academy of Sciences where he became an Associate Botanist in 1783 Wrote The King’s Garden in 1788 and became Chair of botany and keeper of the herbarium

Invertebrate Zoology His biggest contributions were in the fields of invertebrate zoology and evolution Published Natural History of Animals without backbones from 1815-1822

Work with Evolution Accepted view that animals in nature were arranged on one continuous natural scale Meaning that when life started all other life forms were a result of time, and environment interaction Ideas initially presented in 1809 in Zoological Philosophy

Revolutionary Ideas In his books he was the first person to use the word biology in the modern sense In geology talked about uniformitarianism which lead the way for continental drift His theories of evolution were a large protest against current thought

Lamarckism In his volumes he said environment was controlled by three biological laws Organ development Law of use and disuse Inheritance of acquired characteristics

Lamarckism’s forces In Lamarckism there are two main forces driving evolution The complexifiying Force And the Adaptive force

Lamarck’s Legacy While his theory is generally thought of as False Lamarck made the first theory of evolution Darwin took many of Lamarck’s ideas into account when coming up with natural selection

Lamarck’s Legacy cont. Major works Major Theories Plants of France The Kings Garden Natural History of Animals without backbones Major Theories Lamarckism Use/Disuse Inheritance of acquired traits

References http://www.ucmp.berkeley.edu/history/lamarck.html http://en.wikipedia.org/wiki/Jean-Baptiste_Lamarck   http://www.mnsu.edu/emuseum/information/biography/klmno/lemarck_jean.html http://evolution.berkeley.edu/evolibrary/article/_0/history_09 http://www.nndb.com/people/275/000057104/