Dr Stephen Brusatte, Chancellor's Fellow in Vertebrate Palaentology, delivers the second 2014 Science on a Winter's Evening lecture entitled, Tyrannosaur Discoveries.

In this lecture, Dr Brusatte introduces "Pinocchio rex" and other newly discovered tyrannosaurs, and describes how palaeontologists discover fossils, using cutting- edge techniques to study dinosaur evolution.

Recorded on 4 December 2014 at the University of Edinburgh's Michael Swann Building.