Science: Hot-Blooded Dinosaurs?

Dinosaurs are generally regarded as overgrown lizards—pea-brained, coldblooded creatures that spent most of their lives hulking sluggishly in the sun. This image is unfair, argues Adrian Des mond, 28, an English-born doctoral candidate at Harvard University. Desmond, who studied vertebrate paleontology at London University, has spent the past several years reviewing the latest research on the huge creatures that ruled the earth for 140 million years. In a new book titled The Hot-Blooded Dinosaurs (Dial Press; $12.95), he contends that some dinosaurs and their kin were warm-blooded, complex and far more intelligent...

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