Darwin theorized that evidence for the evolution of new species can be found in the fossil record. Which observation supports this theory? A. The fur of snowshoe hares changes color with the seasons. B. The skin textures of narrow-headed frogs change to match the frogs' environments. C. The sizes, shapes, and varieties of related cephalopods have changed over time. D. The shape of cuttlefish has changed to enable the cuttlefish to hide from predators.