Archive for January 21st, 2012

Birdlike Dinosaur Fossil May Shake Up the Avian Family Tree

In the 150 years since its discovery in Germany, Archaeopteryx has perched high on the avian family tree as the earliest and most primitive bird, somewhere near the evolutionary moment when some dinosaurs gave rise to birds. But recent fossil finds cast doubt on this interpretation: Archaeopteryx may be only a birdlike dinosaur rather than […]