The mostly flightless, meat-eating dinosaur descendents were the size of dogs at their smallest, but the largest known examples reached nearly 10 feet in height.

“Terror birds” were giant, flightless, meat-eating creatures that roamed what is now South America for millions of years. As their threatening name suggests ...

There was a time in American history when this tiny bird was a common sight at the marketplace and on the dinner table, but ...

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct giant meat-eating bird—which they say could be the largest known member of its ...