The Rise and Fall of the Dinosaurs by Steve Brusatte

Author:Steve Brusatte
Language: eng
Format: epub, azw3
Publisher: HarperCollins
Published: 2018-03-17T04:00:00+00:00

The brain cavity (upper right-hand corner) and sinuses inside the skull of a Tyrannosaurus rex, revealed by CAT scans.

Courtesy of Larry Witmer.

That’s the final piece of the puzzle, the last component in the tool kit that allowed T. rex to bite so strongly that it punctured, and then pulled through, the bones of its supper. Thick peg-like teeth, huge jaw muscles, and a rigidly constructed skull: that was the winning combination. Without any of these things, T. rex would have been a normal theropod, slicing and dicing its prey with care. That’s how the other big boys did it—Allosaurus, Torvosaurus, and the carcharodontosaurs—because they didn’t have the arsenal necessary for bone-crunching. Once again, the King stands alone.

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