The Thames has always been at the centre of London throughout its evolution, growth and numerous transformations with the river often being compared to a major artery as it delivers life to this manmade metropolis. In fact, this 350 kilometre ribbon of water holds a surprising amount of wildlife right from its source to the sea as it winds through counties such as Oxfordshire, Wiltshire, Surrey and finally, London itself. 125 species of fish live in this famous river alongside kingfishers, water voles, seals, dolphins and even the rare whale which enters the mouth of the estuary. Yet British species are no longer the only sightings city goers could spot on their commute to work. Written by Neve McCracken-Heywood

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