2006-10-26 04:00:00 PDT Los Angeles-- 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 ...

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The piece of amber measures only 1.25 inches (31.5 millimeters) in length. The skull is a mere 0.6 inches (11 millimeters). Xing Lida, CC BY-ND A mysterious transformation ...

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

Using computed axial tomography, or CAT, the researchers scanned several skulls, a pelvis and a beak in an effort to reconstruct the size of the bird's brain, eyes, ears and spinal cord.