A Sumatran tiger at the Sumatra Tiger Rescue Center near Bandar Lampung on the southern tip of Sumatra island Beawiharta /Reuters /Landov hide caption

itoggle caption Beawiharta /Reuters /Landov

Dara Arista, 8, holds a photo of Sheila in front of the tiger's cage at the zoo in Jambi, Indonesia. Poachers had slaughtered Sheila during the night. Steve Winter/National Geographic hide caption

itoggle caption Steve Winter/National Geographic