Darwinian Evolutionary Theory - SS3 Biology Lesson Note

Darwinian evolutionary theory, formulated by Charles Darwin, is a comprehensive framework that explains how species evolve and diversify over time through the process of natural selection. The theory proposes that populations of organisms undergo genetic variations, and those individuals with advantageous traits that increase their fitness have a higher likelihood of surviving and reproducing, passing on those traits to future generations. Over time, this accumulation of favourable traits leads to the gradual change and adaptation of species to their environments. Darwinian evolutionary theory revolutionized our understanding of the unity and diversity of life, providing a unifying explanation for the patterns and processes of biological evolution observed in the natural world.

(Britannica.org)