Utahraptor is often described as the largest and most fearsome of all raptor dinosaurs, but the science behind that claim remains complex. Fossil evidence suggests an animal far bigger than its ...

Around 135 million years ago, Utahraptor roamed the forests, rivers, and plains of what is now Utah and was the largest known ...

Utahraptor is going to need 10 million more candles on its next birthday cake. A geological study of the rock formation that encased a fossilized example of the world's biggest "raptor" shows it's 10 ...

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This article is part of The State of Science, a series featuring science stories from public radio stations across the United States. This story, by David Condos, was originally published by KUER.

Imagine the Velociraptors from "Jurassic Park" but much bigger - bigger teeth, bigger claws. Those were real. They're called Utahraptors. Scientists found 136-million-year-old fossils of them in an ...

LAWRENCE — Utahraptor is going to need 10 million more candles on its next birthday cake. A geological study of the rock formation that encased a fossilized example of the world’s biggest “raptor” ...