These large, flightless birds have powerful, muscular legs and tough, prehistoric-looking feet with claws that can deliver a ...

Archaeologists found ancient bird footprints that are 60 million years too early. ... it definitely establishes that bird feet evolved millions of years earlier than we previously thought.

These flightless avians, some of which stood more than 10-feet-tall, strutted over the wide prehistoric planes, chasing down prey and tearing off chunks with deep, hooked beaks.

Archaeologists found ancient bird footprints that are 60 million years too early. They could rewrite the history of evolution.

The Andean condor is the largest species of raptor on the planet and the second-largest wingspan of any bird — which spans around 10.5 feet (3.2 m), according to the San Diego Wildlife Alliance.

The condors, which are one of the world’s largest birds with a wingspan of 9.5 feet, almost went extinct in the 1980s, according to the US Fish and Wildlife Service.By 1987, the tiny population ...