May 21 (Reuters) - A new fossil of the Cretaceous Period dinosaur Psittacosaurus, a dog-sized herbivore with a parrot-like beak, that was donated to a Chinese university came with a surprise - one ...
The earliest feathered dinosaurs may have evolved their bird-like features while still retaining lizard-like scales on other parts of their body. This theory is based on the discovery of a fossilized ...
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