Who else developed a theory of evolution other then Charles Darwin?

Alfred Russel Wallace independently developed a theory of evolution through natural selection around the same time as Charles Darwin. Wallace's extensive fieldwork in the Amazon and the Malay Archipelago contributed to his insights on species variation and adaptation. He ultimately co-published a paper with Darwin in 1858, which prompted Darwin to publish his own seminal work, "On the Origin of Species." Other notable figures, such as Jean-Baptiste Lamarck, also proposed early evolutionary ideas, though they differed significantly from Darwin's theory.