To say photographer Sam Rowley is dedicated to his craft is no understatement.
He waited, late into the night on a London Underground platform for five nights, to capture the moment when two mice were having a scrap over a crumb of food.
The little black mice are a common sight on the Tube as they spend their lives running along the tracks and surviving on discarded takeaways or sandwiches.
Sam's patience has been rewarded with a prestigious wildlife photography prize after capturing the subterranean creatures battling over the morsel. And a stunning image.
He also won the National History Museum-run Wildlife Photographer of the Year LUMIX People's Choice award for Station Squabble.
Fans of the annual, internationally-renowned competition, were asked to rank some of the images that didn't quite win its top prize in October 2019, but were still stunning.
More than 28,000 people voted for Sam's picture as their favourite in the best of the rest category.
He said he spent late nights in central London at the tube station, laying on his front to get the perfect low-angle view.
The two mice had been foraging for food separately until they both found the same morsel. Sam captured the moment when they briefly tussled over the scrap before going their separate ways.
He "got lucky" with the shot, adding that he had spent five days "lying on a platform", so it was probably going to happen at some point.
Sam is a producer for the BBC's natural film-making unit in Bristol and says photographing wildlife is his passion.
Sir Michael Dixon, the director of London's Natural History Museum, which runs the competition, said: "Sam's image provides a fascinating glimpse into how wildlife functions in a human-dominated environment.
"The mice's behaviour is sculpted by our daily routine, the transport we use and the food we discard.
"This image reminds us that while we may wander past it every day, humans are inherently intertwined with the nature that is on our doorstep."
He added that he hopes it "inspires people to think about and value this relationship more".
The images are on display as part of an exhibition at the National History Museum until May 31.
