"High-tech tools link T. rex to chickens
Using highly sensitive instruments and techniques more typically employed to study human disease, scientists at Harvard Medical School have for the first time isolated and identified proteins from a dinosaur, a tyrannosaurus rex that roared its last 68 million years ago.
Some proteins identified in the ferociously fanged Cretaceous-era predator were a close match to protein found in modern-day chickens, which the authors say lends more credence to theories that birds are descended from dinosaurs."