description Jean-Baptiste Lamarck Overview
Jean-Baptiste Lamarck was a French naturalist influential in the development of evolutionary thought during the late 18th and early 19th centuries. He proposed that organisms acquire characteristics during their lifetime through use or disuse, a mechanism later termed inheritance of acquired characteristics. His work, though ultimately superseded by Darwin's theory, established foundational concepts regarding adaptation and species change. Lamarck’s ideas were particularly significant for biologists and historians studying the origins of evolutionary science.
help Jean-Baptiste Lamarck FAQ
What was Jean-Baptiste Lamarck’s theory of evolution?
Lamarck argued that organisms change in response to their environment and that acquired characteristics could be inherited. His model emphasized use and disuse, such as an organ becoming stronger through repeated use.
How did Lamarck differ from Charles Darwin?
Lamarck proposed that organisms actively acquired useful traits during their lifetimes, while Darwin later explained adaptation mainly through natural selection acting on inherited variation. Modern genetics does not support Lamarck’s general inheritance mechanism.
What did Lamarck contribute to the classification of animals?
Lamarck helped establish invertebrate zoology as a distinct field and organized animals without backbones into major groups. He also popularized the term “invertebrate” in early 19th-century biology.
Did Lamarck coin the word biology?
Lamarck is one of the scientists credited with helping establish “biology” as the name of a general science of living things. He used the term in his early 19th-century work on animal organization and evolution.
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
