Modern birds are the living relatives of dinosaurs. Take a look at the features of flightless birds like chickens and ostriches that walk upright on two hind legs, or predators like eagles and hawks ...
Ch. 1. From Protoavis to Pigeon -- Ch. 2. The Design of an Airframe -- Ch. 3. The Triassic Treasures of Texas -- Ch. 4. A Portrait of Protoavis -- Ch. 5. The Jurassic Birds -- Ch. 6. The Birds of the ...
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