The ingenious Mouse Swing is this year’s winner of the inaugural Janet Wood Innovation Award, a competition run by Datesand Ltd to design a product that furthers at least one of the 3Rs. The Mouse Swing, pure genius in its simplicity, clips easily on to the bars of most cages, increases the use of the 3-dimensional cage space and encourages climbing – a natural behaviour for mice. It’s very well known that the promotion of natural behaviours helps to prevent stereotypes developing in these animals.