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

2. 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

3. 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

4. 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

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

6. 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

7. 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

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

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

10. 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

11. 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

12. References http://www.ucmp.berkeley.edu/history/lamarck.html