In 2006, an amateur fossil hunter made an unprecedented find: two dinosaurs fossilized while apparently locked in battle. A court case followed over mineral versus surface rights, bringing into question the future of fossil discovery in the US.
Turns out, dinosaurs probably had feathers. This artist is using science to draw more accurate pictures.
Sandstone rocks discovered in Australia about a year ago are believed to contain fossils of the earliest living cells.
How to Build a Dinosaur
Paleontologist Jack Horner discusses his new book on how it might be possible to turn an embryonic modern-day chicken into a dinosaur by manipulating genetic expression.
Anchor Marco Werman speaks with Paul Sereno, a palaeontologist at the University of Chicago, about a new dinosaur that may be a smaller and earlier version of T rex. A fossil of ?raptorex? was found in Inner Mongolia ? the answer to our Geo Quiz.