Once millions of orangutans lived in the forests that stretched from China to Java. Now only small pockets support a dwindling population of just 15,000. The continued destruction of their habitat and the black market trade in baby orangutans threaten to bring our closest primate relative to the brink of extinction. One man making a small difference in this battle for survival is Dr Willie Smits. In 1991 in Indonesia he founded the Wanariset Orangutan Re-introduction Centre where he teaches orangutans how to become 'wild' again. His efforts have made him many enemies but this year Dr Smits will rescue his 1000th orangutan.