How can you distinguish one insect from another?
The traditional method using a magnifying glass and a field guide may be superseded by a new bioacoustic device, developed by entomologist and electronic engineer David Chesmore from the University of York, that accurately measures insect biodiversity. The system could also have a valuable medical application - it could be trained to pick up heart problems that might otherwise go unnoticed. Quentin Cooper invesetigates.
Producer Pam Rutherford EMAIL: material.world@bbc.co.uk