In 1859 Darwin published On the Origin of Species, which outlined his theory of evolution ... of cases this type of inheritance cannot occur. Lamarck's theory cannot account for all the ...

Unlike Darwin, Lamarck held that evolution was a constant process of striving toward greater complexity and perfection. Even though this belief eventually gave way to Darwin's theory of natural ...

However, Darwin did not invent the idea of evolution and not everyone saw his ideas as original. The great geologist Charles Lyell repeatedly referred to Lamarck s theory as modified by Darwin ...

Lamarck champions evolution. French naturalist Jean-Baptiste de Lamarck proposes that living things evolve to become more complex through time. In his Philosophie zoologique, Lamarck claims that ...