Zoo employee Vlada Zapolskaya walks past a figure of primitive man with Ralf, an 1,5-year-old red fox, during a 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 November 14, 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. REUTERS/Ilya Naymushin