Of the wild animals in Sarawak, wild cattle and the rhinoceros have nearly disappeared before their ruthless destroyer, man; and such would have been the fate of that huge, though harmless, anthropoid, the maias, or "orang-utan," at the hands of collectors, had not the Government placed a check upon them by limiting the number each may collect.[13] Deer, the sambur, the muntjac or barking deer, and the little mouse-deer, and also wild pig, of which there are several species, abound.[14] Numerous too are the monkeys and apes, and numerous are the species; the more peculiar of the former being the proboscis monkey, a species confined to Borneo, and of the latter the gentle gibbons, who announce the dawn, making the woods ring and echo with their melodious gurgling whoops. There are two kinds of diminutive bears, the tree-leopard, wild cat, the scaly ant-eater, the porcupine, the otter, the lemur, and other small animals, including the flying fox, flying squirrel, flying lizard, flying frog, a peculiar kind of rat with a tail which bears a close resemblance to a feather,[15] and huge toads nine inches in height.[16] But to the casual traveller in the dense jungle with but a limited view, excepting an occasional monkey, or a pig or deer startled from its lair, few of these animals will be visible. Of the valuable products of the jungle it will be sufficient to note here that gutta, camphor, cutch, and dammar-producing trees abound; also creepers from which rubber is extracted; and rattans of various kinds. There are trees from the nuts of which excellent oil is expressed; and many kinds of useful woods, some exceeding hard and durable, and some ornamental.