Rosalind Mackay, Museum of Zoology, writes: I am currently studying for a master’s in the Department of Zoology here at the University of Cambridge. My project is about insect conservation and public engagement. These two seemingly disparate aspects are connected by the intervention we’re trialling. Prof Ed Turner, my supervisor, has been collaborating with the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire for several years on a project installing mounds of earth called...