Discovery: Metamorphosis: Drosophila Melanogaster, Hoverfly

Dr Erica McAlister uncovers a treasure trove of remarkable insights from the insect world including the Drosophila melanogaster - or fruit flies. More is known about these innocuous flies than any other animal on the planet, as a model for human genetics. She also looks at the hoverfly, which arguably undergoes the biggest transformation of any animal, and reveals and how insect metamorphosis could be a tool to track future climate change