3550624 Hippopotamus Joan with her male calf Jimmy at London Zoo in March 1927 (b/w photo) by Bond, Frederick William (1887-1942); Zoological Society of London; (add.info.: Ernie Bowman, their keeper nicknamed \'The Professor\', was awarded ZSL?s Bronze medal in 1927 \'for services rendered in the successful rearing of a young hippopotamus, 1926-27?. \'Jimmy? was born on 20th August 1926.); 穢 Zoological Society of London ; British, out of copyright.