The Darwinian and Lamarckian models

The Darwinian model suggests that species evolve through natural selection, where individuals with advantageous traits are more likely to survive and reproduce over generations, passing those traits on. Lamarckian theory proposes that organisms can acquire traits during their lifetime—like a giraffe stretching its neck—and pass those learned traits to their offspring. Modern science supports Darwin’s idea, emphasizing genetic differences as the basis for evolution, while Lamarck’s idea of acquired traits being inherited is largely discredited. Both models aimed to explain how living things change over time, but Darwin’s mechanism is now the recognized explanation.