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Zoo employee Vyacheslav Barkalov walks with Ralf, an 11-month-old red fox, next to guanaco Bella in an open air cage during Ralf's training session, which is a part of a programme of taming wild animals for research and interaction with visitors, at the Royev Ruchey Zoo in Krasnoyarsk, Siberia, Russia February 8, 2017. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which experimented on fox domestication through long-term selection and breeding for more than 50 years, according to zoo representatives. (Photo by Ilya Naymushin/Reuters)
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