Overview: An old skull is examined to discover if prehistoric Brits were cannibals and a killer shark is pulled from a pool of formaldehyde to find out how its genetic makeup helped swimmers win Olympic gold in Sydney. We dare a curator to handle a famous gem said to curse all who touch it, and then enter a once top-secret room where WWII spymasters created a bomb that came within a hair of killing Hitler. And we evaluate a perfectly preserved specimen of a Dodo, to discover whether the flightless bird’s extinction was really as inevitable as we have been led to believe.