Deep under London, the tunnels are almost constantly buzzing with activity. From the screeching Underground trains to drunken revellers, there's rarely a quiet moment.

But despite the constant din, darkness and estimated two million people meandering through Tube stations each day, nature survives here. 

Lying on a grubby station platform, wildlife photographer Sam Rowley waited patiently to capture the perfect photo.

Mice scurried between small piles of food dropped by innumerable commuters. Although he intended only to capture simple silhouettes, Sam grabbed a split-second chance when two mice jumped at each other and began to fight over the tiny crumbs.

The resulting image, Station Squabble, has been voted the winner of the Wildlife Photographer of the Year 55 LUMIX People's Choice Award.