From towering flightless birds to massive species capable of flight, the largest birds on Earth are truly remarkable animals. Their size, strength, and adaptations set them apart from all others.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Argentavis magnificens was so massive it should’ve stayed ...

WASHINGTON: US researchers said Monday they have identified the fossilized remains of an extinct giant bird that could be the biggest flying bird ever found. With a wingspan of 20 to 24 feet (6.1 to 7 ...