Darwin's theory of evolution UKS2 Topic: Dinosaurs and Fossils Block J: Charles Darwin and his theory of evolution Session 5 Darwin's theory of evolution Evolution is when the offspring of an animal is born with a variation that can help it survive better than its peers. This variation will spread until the whole population has it, and the species has evolved. © Original resource copyright Hamilton Trust, who give permission for it to be adapted as wished by individual users. We refer you to our warning, at the foot of the block overview, about links to other websites.

Darwin's theory of evolution Darwin based his theory on his knowledge of fossils – that ancient animals looked similar to living animals found in the same area.

Darwin's theory of evolution Darwin based his theory on his knowledge of geology – very small changes can add up to huge differences, and prove the very great age of the earth.

Darwin's theory of evolution Darwin based his theory on his knowledge of extinctions – animals became extinct as they evolved into other animals, that's why there is a sequence of fossils.