Add Yahoo as a preferred source to see more of our stories on Google. Argentavis magnificent© Radomil / CC BY-SA 3.0 The post Too Big to Flap? The Prehistoric Bird so Massive it Could Barely Fly ...

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 ...

Six million years ago, the skies of Argentina were home to fearsome predator – Argentavis magnificens, the largest bird to ever take to the air. It weighed in at 70kg and had a wingspan of 7m, about ...

Why aren't birds larger? Fifteen-kilogram swans hold the current upper size record for flying birds, although the extinct Argentavis of the Miocene Epoch in Argentina is estimated to have weighed 70 ...

Add Yahoo as a preferred source to see more of our stories on Google. Long before humans walked the Earth, the skies of South America were ruled by a colossal bird. Argentavis magnificens, one of the ...

Long before humans walked the Earth, the skies of South America were ruled by a colossal bird. Argentavis magnificens, one of the largest flying birds ever discovered, had a wingspan so wide that it ...