Word: warmness
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Dates: during 1990-1999
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...WARM BLOOD OR COLD...
...early as the 1950s, though, some researchers claimed that the rich blood supplies within dinosaurs' bones, as evidenced by the channels left behind in fossils, were more like those of fast-growing (and warm-blooded, or endothermic) birds and mammals than like those of reptiles. Maybe dinosaurs were warm-blooded after...
...fact that dinosaurs were warm-blooded should be especially obvious, says Bakker, because they were known to have had chest cavities large enough to hold huge hearts, like birds. Additional evidence is found in their migratory patterns. "There's no question that dinosaurs got as far north and as far south as there was land," says Bakker. "What should have been the tip-off is that the ones you find in the far north are the same ones you find in the south, so they could live in a wide range of climates. Also...
Scientists now recognize that there are, in fact, five or six different kinds of warm- and cold-bloodedness, and they are sometimes hard to distinguish, even in living animals. Moreover, making generalizations about the relationship between an animal's activity level and its metabolism can be misleading. "We tend to think that cold-blooded animals are sluggish, but that's not very accurate," says Yale paleontologist John Ostrom. "Some snakes, lizards and crocodiles can move faster than humans can. At the same time, we tend to think that warm-blooded animals are fast and very active, but the average house...
...brightest students ever at Harvard... ever," said Dan Lieberman, a former Dunster House tutor. "What's more important is that she was a warm, generous, down-to-earth, modest, courageous person...