Bartek, a 2-year-old Amur tiger, eats a slab of meat inside his open-air cage as zoo keepers mark the upcoming Day of the Amur Tiger and the Far Eastern Leopard at the Royev Ruchey zoo in the suburbs of Krasnoyarsk, Siberia, September 25, 2015. The international day for the protection of Amur tigers and far eastern leopards will be celebrated at the zoo on September 26, according to zoo employees. (Photo by Ilya Naymushin/Reuters)
