Weekend readers' pictures: Evolution

Pauline Richardson: “Demonstrating evolution against the Atlantic ocean in Swakopmund, Namibia” Photograph: Pauline Richardson

Ed Matthews: “I just love the tadpoles from our garden pond when they’re at the halfway stage” Photograph: Ed Matthews

Keith Clark: “The hand of this squirrel monkey in Costa Rica brought home the closeness of our neighbours” Photograph: Keith Clark

Tony Kemplen: “Two Fiat 500s parked together. Evolution does not always result in improvement” Photograph: Tony Kemplen

Barbara Zammit: "At the Natural History museum in the bicentennial year of Darwin's birth, there was something poignant about my ever-inquisitive grandson wanting to pose alongside the great man himself" Photograph: Barbara Zammit

Katie Moylan-Jones: "Traditional and modern modes of transport in Hoi An, Vietnam" Photograph: Katie Moylan-Jones

Ian Nolan: "Natural Selection at the shopping mall, apparently" Photograph: Ian Nolan

Iain McEwan: "Taken at the Agricultural Museum, housed in an old greenhouse, in the gardens of Villa Carlotta, Lake Como. The display of old watering cans increasing in size reminds me of the classical image of human evolution" Photograph: Iain McEwan

Keith Wellings: "A Barbary Macaque holding and enjoying a civilised delight on Gibraltar" Photograph: Keith Wellings