Final answer:Dinosaurs are closely related tobirds, not lizards. The relationship stems from the Saurischia group, where theropod dinosaurs are the direct ancestors of birds, evidenced by anatomical similarities and fossil records like Archaeopteryx.Explanation:According to Dr. Grant, dinosaurs are closely related tobirds. Dinosaurs (including birds) are further subdivided into two groups: the Saurischia (“lizard like”) and the Ornithischia (“bird like”). However, it was the Saurischia, specifically the bipedal predators known as theropods, that gave rise to modern birds. This connection is confirmed by several anatomical similarities, such as the structure of the hip and wrist bones and the presence of a wishbone formed by the fusion of the clavicles, suggestive of a close evolutionary relationship between theropods and birds.The famous fossil ofArchaeopteryxshowcases characteristics of both dinosaurs and birds, indicating this close evolutionary link....

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