The beautifully detailed photos feature the Sumatran tiger (pictured), which is classed as 'critically endangered' by the International Union for Conservation of Nature and Natural Resources, with numbers in the wild falling
Two children stand at the grave of Simon. Simon the cat is credited with helping save the lives of Royal Navy officers during the Chinese civil war in 1949. He protected food stores from a rat infestation during a siege.
World War II, 13th February 1945, London, England, A Rescue worker holds a cat amidst the devastation and rubble caused by a V-bomb launched by a Nazi raid in Judd Street (Photo by Popperfoto/Getty Images)