John Lloyd and Noel Fielding this week are joined by the satirist Craig Brown, librarian at the Royal College of Physicians Katie Birkwood, and ecological columnist George Monbiot.

George Monbiot an environmental journalist best known for his work in The Guardian, whose work has led to him to be declared persona non grata in seven countries, sentenced in absentia to life imprisonment in Indonesia, shot at, beaten up by military police, shipwrecked and stung into a coma by hornets, donates a short-faced bear. It is an extinct bear that lived till around 13,000 years ago that was twice the size of a grizzly bear, living at a time when the American continent was full of huge animals called megafauna.

Katie Birkwood, the rare books and special collections librarian at the Royal College of Physicians, has work on projects covering the lives of John Dee, Robert Cotton, James Ussher and Fred Hoyle, and the creator of a knitting pattern for mittens, offers up A Treatise on Astronomy by Gerolamo Cardano. His book was owned by John Dee, who used it as his textbook and was later stolen.

Craig Brown, satirist for Private Eye including a regular parody column, a regular columnist for the Daily Telegraph, the writer of Norman Ormal and a book on the chance meetings of 101 famous people, gives the Museum the whole of Crossroads Motel, fully staffed, complete with its slightly shaky walls.