Amsterdam Urban Jungle - Unseen Nature

Cities may harbour more wildlife than nature parks outside the city. Urban ecologists Remco Daalder and Geert Timmermans explain why that is, and how remarkable that is. Photographer Frans Lemmens observes how animals adapt to life in the city, and has taken incredible urban wildlife photographs of for instance the peregrine falcon, the grass snake, the dwarf bat and the common swift.