The photographs form part of an exhibition at the University of Cambridge's Polar Museum.

BBC: Captain Scott Antarctic photos shown in Cambridge

As well as the Captain Scott letter, held at the Polar Museum, and Darwin's animal specimens at the Museum of Zoology, other items include Isaac Newton's own copy of Principia Mathematica, at Cambridge University Library.

BBC: Carol Ann Duffy

Mr Blaszkiewitz said the polar bear may be preserved and displayed at Berlin's Natural History Museum, DPA reports.

BBC: Candles by Knut's enclosure