CONSERVATIONISTS have discovered a new population of orangutans in East Kalimantan. They estimated the number of the endangered animal species, found in a remote area of rugged limestone mountains, at about 2,000. “But we could only count 299 orangutan nests,” said Erik Meijaard, an ecologist at The Nature Conservancy (TNT).

Erik and his team could not count all the nests because of the difficult terrain. Some of the male adults discovered