Nova: Four-Winged Dinosaur
When scientists discovered a 130 million-year-old fossil, it brought into question conventional assumptions about the evolution of flight. Their beautiful but bizarre discovery, named "Microraptor," was a four-winged, crow-sized animal that's opened new areas of discussion among paleontologists in the ongoing bird-dinosaur link. 2008/color/56 min/NR/widescreen.
|Run Time:||56 minutes|