Maybe Dinosaurs Were A Coldblooded, Warmblooded Mix

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If you go to a zoo on a cold day and watch the snakes, you'll see what it means to be coldblooded. Not much action going on — most reptiles and other coldblooded creatures take on the temperature of their surroundings, so they tend to be most sluggish when ...Read More

Source: NPR Science - ingested into KQED