Lamarck

Jean-Baptiste Lamarck(17744-1829) was a brilliant scientific French who was not very recognize on his lifetime. It is very clear that Lamark was an excellent naturist, but unfortunately he did not have the support to work in important investigations. Because of external conflict Lamark was appointed to be a professor of the natural history of insects and worms. Although he was not an expert and was not happy working in that area, he made many small but crucial contributions with his investigations. For example, he started to use the terms “invertebrates” for insects and worms and biology for the study of living things, he was the first to see the difference of crustaceans, arachnids, and annelids from insects. Also, he made an extraordinary classification about mollusks and he wrote several book about invertebrate zoology and paleontology when he explain his theories of evolution

Source:

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

-I dicided to write about Lamark because he was the first person to try explain a coherent theory about evolution. Another factor, that pushed me to write about Lamark was because I could not see difference between his theory and Darwin's theory. Fortunately, I understand that Darwin showed that all living organism were merely the evolution of a common ancestor, and they were adapt to different conditions and natural selection had become separate species. In this way the theory was refuted creationist. on other hand according to Lamarck, the organs are acquired or lost as a result of use or disuse, and the characters acquired by a living organism are inherited by their descendants.

Although Charles Darwin study the theory of Lamark in school, it was not very impact to him to develop his theory of natural selection. It is important say that Darwin tried to disprove Lamark’s investigation, and later the started to admit that the heritable effects of use and disuse can be impact in organisms, but it was not very relevant for Charles Darwin. The factors that influenced in Darwin were the investigation of his grandfather and his trip around the world when he was paid attention to the similarities among species

The church took was strongly disapproved to the publication of the book On the Origin of Species. The church only wanted to accept the book of genesis literally to refer about creation. Another factor that could affect the empathy from the church to Darwin was that many of his ideas was relation to group of atheist of that time.