Jean Baptiste Lamarck argued for a very different view of evolution than Darwin's. Lamarck believed that simple life forms continually came into existence from dead matter and continually became ...

The French naturalist Jean-Baptiste Lamarck was an earlier evolutionist who put forward the theory of acquired characteristics. This held that characteristics acquired during an organism’s life ...

By Bob Grant Should Evolutionary Theory Evolve? Some biologists are calling for a rethink of the rules of evolution. Evolution, by its very nature, is a dynamic process. But just as fluid are ...

The discovery of Lucy, a 3.2 million-year-old skeleton, changed our theory of human evolution forever. The discovery is celebrating its 50-year anniversary, and continues to capture human imagination.