Millions of years ago, the most fearsome predator in South America wasn't Tyrannosaurus rex or a raging mammoth - but a flightless bird with an enormous beak. The creatures known as "terror birds" held sway starting about 60 million years ago, and dominated the continent until only about 2 million years ago. But it wasn't clear exactly how the terror birds killed their prey. Until now.
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Lees verder: http://cosmiclog.msnbc.msn.com/_news/2010/...d-tore-its-prey
Bron: MSNBC
