Darwin's Predictions
Evolution happens.
Darwin wasn't the first to suggest the theory of evolution—that all living things originate from ancestral forms and that their distinguishable differences are due to modifications in successive generations. But no one gave it more thought, or provided more evidence for it, or more deeply ingrained the theory into our collective consciousness than Charles Darwin. Today, researchers using the genetic techniques of "evo devo" can trace the evolution of the various kinds of organisms that Darwin fit into his "tree of life" (here, from an 1837 notebook, his first such tree). As the geneticist Theodosius Dobzhansky once wrote, "Nothing in biology makes sense except in the light of evolution."