The full-house sign is up at Sepilok, a 10,000-hectare sanctuary in Malaysia for orang-utans, the endangered primates of the deep forest. Despite its vast size, with 200 orang-utans and their infants, the Sabah state sanctuary is already bursting at the seams. 'Each orang-utan needs a large area to forage,' said Karim Bujang, Sabah state minister for environment. 'The sanctuary is overcrowded and we need to urgently relocate the orangs.' A major tourist attraction, the Sepilok centre, founded in 1964, rehabilitates orang-utan babies that were displaced by logging, hunting and deforestation, to be later released into the wild. It takes up to six years to teach the primate babies the necessary survival skills. One solution for overcrowding is to move the animals to the huge 2.5 million-hectare Tabin forest reserve about 100km from Sepilok. 'But we are short of funds and need help,' Mr Karim said. Orang-utans do not like travelling over rough terrain. 'They get sick and vomit and have difficult readjusting,' said a local conservationist. 'The best way is to transfer orangs by low-flying helicopter.' But helicopters cost money, especially in remote Sabah state. Mr Karim said a British charity was helping, but without more funds, not all the animals would get to ride in the helicopter. Conservationists who admire the rehabilitation work at Sepilok however criticised the kid-glove treatment. 'Orangs are wild animals and can fend for themselves as long as we don't destroy their habitat,' said a conservationist. 'We need to ban logging and reduce deforestation that is together driving orangs in the wild to extinction.' 'We should save the forest. The orangs can save themselves,' he said.