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Chemical clues preserved inside fossilized T. rex teeth reveal that the dinosaur maintained a body temperature of about 97 degrees Fahrenheit, almost identical to humans. The finding provides direct ...

NEW YORK (AP) — Using fossilized teeth, scientists have finally taken the T. rex's temperature — and it wasn't too different from our own. Researchers once thought that dinosaurs were sluggish, ...

When picturing a scaled, toothy Tyrannosaurus rex stomping across North America, building nests and eating other dinosaurs, it's easy to forget that scientists have gleaned everything we know about T.

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A broken rib from Scotty, the largest known T. rex skeleton, contains an extraordinary fossilized network of blood vessels formed while the dinosaur was healing. Scientists used neutron and X-ray ...

Markets see near-certain odds that the Federal Reserve raises interest rates Wednesday, though similar moves the last three decades have not posed a meaningful headwind to S&P 500 returns long-term.

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UCLA scientists used portions of dinosaur teeth to pin down Tyrannosaurus rex’s temperature for the first time, placing it at 97 degrees Fahrenheit, comparable to a human. A warm-blooded T. rex would ...

The 4 footprints in a newly discovered T. rex trackway span about 23 feet (7 meters) in the Hell Creek Formation in North Dakota. Image via Tyler Lyson/ Denver Museum of Nature & Science. A Colorado ...

WASHINGTON, Sept 16 (Reuters) - Using chemical clues in Tyrannosaurus rex teeth, scientists have shown that this massive predator was warm-blooded — with a body temperature close to that of a person — ...