East Africa has endured more than two years on continuous drought. The latest predictions suggest the drought is not likely to end any time soon. We look at why climate change and weather patterns in the Pacific and Indian oceans are largely to blame. Andrea Taschetto, chief investigator at the Centre on Climate Extremes at the University of New South Wales discusses the latest predictions

Drought has also been an issue in Europe, comparable with events nearly 500 years ago. Chantal Camenisch at the Institute of History at Bern University in Switzerland has been delving into European drought history and says despite the vast differences in living conditions there are many parallels with today.

When a dinosaur killing asteroid hit the earth did it have company? A suspected impact crater discovered off the coast of West Africa may have been caused at around the same time . Heriot Watt University geostratigrapher Uisdean Nicholson and University of Texas geologist Sean Gulick have been investigating.

And we have some of the answers to why T Rex had such small eyes for the size of its skull, Stephan Lautenschlager at the University of Birmingham has the gruesome answer.

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Presenter: Roland Pease
Producer: Julian Siddle