Fearsome predators like T. rex and towering, telescope-necked dinosaurs, such as brachiosaurus,
were warm-blooded creatures in the same way birds and mammals are, according to a groundbreaking new study.
The question of whether the blood that coursed through dinosaurs' giant frames ran warm or cold,
like that of reptiles, is a long-standing one that has vexed paleontologists.
Knowing that fundamental piece of information could illuminate the lives of the prehistoric creatures in significant ways.
Warm-blooded animals have a high metabolic rate — they take in lots of oxygen
and need many calories to maintain their body temperature, while cold-blooded animals breathe and eat less.
the question of whether dinosaurs were warm- or cold-blooded is one of the oldest questions in paleontology,
and now we think we have a consensus, that most dinosaurs were warm-blooded,"
said lead study author Jasmina Wiemann, a postdoctoral researcher at the California Institute of Technology, in a news release.
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