But elephant birds, who lived more than 1,200 years ago, were likely the biggest birds to ever exist at over 1,500 pounds. Some even clocked in around 1,900 pounds , according to Scientific American.

The giant moa has been extinct for 900 years, but Maori researchers working Colossal Biosciences and filmmaker Peter Jackson ...

At thirteen inches long, the elephant bird’s egg is the largest egg of any animal ever—larger, even, than a dinosaur egg. Impressed? So were researchers in the 1800s.

The Ostrich: The Biggest Bird—but Not in the Air. ... (154 pounds)—making it the largest flying bird to ever exist. Scientists believe it flew much like modern condors, ...

Colossal Biosciences has announced a partnership to resurrect giant flightless birds called moa. But the company's recent ...

Introducing Pelagornis sandersi, an extinct giant bird that lived some 25 to 28 million years ago. With an estimated 24-foot (6.4 meters) wingspan, the ...

The P. sandersi may be the largest flying bird ever. It had paper-thin hollow bones, but may have needed a running start to fly. Scientists believe it lived 25 million to 28 million years ago ...

A curious teenager in Argentina has discovered the fossil skull of the biggest bird ever found -- a swift, flightless predator 10 feet tall that pursued its prey across the steppes of Patagonia 15 ...

New Zealand has been a haven for earthbound birds for eons. The absence of terrestrial predators allowed flightless parrots, kiwis and moas to thrive. Now researchers are adding two prehistoric pen… ...

Imagine a bird that couldn’t fit in your living room because its wings were too big. That’s exactly what would happen if you tried to bring the Pelagornis sandersi home – assuming houses and ...