Britain’s canals made their way through the countryside to the city, providing a highway for birds, fish and mammals to commute in and out of the capital – some from the most unexpected origins. The end of most commercial canal transport by the second half of the 20th century led to many canals becoming derelict. However, their increasing use for leisure activities has since led to the restoration and reopening of many canals and improvement in water quality and habitats. At first glance, the urban waterway may appear a harsh environment for wildlife, but a closer look uncovers a landscape teeming with life…..