Without a doubt, humans, chimpanzees, and other organisms share similar features. An early explanation was that these features reflect similar designs because they serve similar purposes. Then evolutionary theory hypothesized that similar features were explained by (and are evidence for) descent from a common ancestor. Which explanation matches the evidence?

Straddling the border of Utah and Colorado, Dinosaur National Monument (DNM) is one of the richest exposures of dinosaur fossils in the world.¹ But not just dinosaurs are on display. DNM also contains equally breathtaking rock exposures and sheer canyons.