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 ...
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 ...
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