In The Field

Giant bird was a glider

Argentavis soared rather than flapped over Argentina.

Scientists have modelled the flight of the world’s largest flying bird — a 70-kilogram ancient avian behemoth with a 7-metre wingspan. The new models show that Argentavis magnificens, which was approximately the size of a modern-day Cessna 152 light aircraft, flew by gliding rather than by flapping its giant wings in the skies above Argentina 6 million years ago.

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