Winner: Station Squabble by Sam Rowley, UK Sam discovered the best way to photograph the mice inhabiting London Underground was to lie on the platform and wait. He saw them fight over scraps of food dropped by passengers a few times, possibly because it is so abundant. This squabble was over in seconds, before one mouse grabbed a crumb and the pair went their separate ways

Photograph: Sam Rowley/2019 Wildlife Photographer of the Year/NHM