The story of a Sumatran rhino took a dark turn this week when the mammal died weeks after a rare sighting. The female Sumatran rhino was caught in a pit trap last month, the first time in 40 years the species was seen in Kalimantan, the Indonesia part of Borneo. Now conservationists say the female rhino, which raised hopes that the species still roams the forests, has died. Sumatran rhinos ...