Changes

[[Bird]]s have scales, claws, and they lay eggs. Bird [[feather]]s are modified scales. Bird legs are covered with scales, and their toes have claws. Birds lay shelled eggs, and they are allegedly descendants of small, meat-eating dinosaurs. Scientists who believe in evolution and who classify animals on the basis of ancestry say that birds are reptiles.

[[Bird]]s have scales, claws, and they lay eggs. Bird [[feather]]s are modified scales. Bird legs are covered with scales, and their toes have claws. Birds lay shelled eggs, and they are allegedly descendants of small, meat-eating dinosaurs. Scientists who believe in evolution and who classify animals on the basis of ancestry say that birds are reptiles.