the Malay name of the orangutan means forest-human being, and the first tidings of its existence came already to the time of the thirty year old war through a Dutch doctor to Europe. This reported from Java, that one says about the Orang there, it admittedly has a language-fortune, that however, it doesn't use, in order not to be put in to the work by the human being.
Spread Today, the Orang only lives at few places of Sumatra's northwest-coast and in the west Borneos. Since one learned in younger time to bring it to the reproduction in human care, one tries to expatriate such zoo-births again in the early adult-condition into the homestead.
Shape Orangs reach body-heights of approximately 97 cm and spans of 260 cm. its weight amounts with full-grown men until over 100 kg, the females then weigh approximately 40 kg. Long, incorrectly to the sluggishness often stipulates obesity and weight of 150 kg leading zoo-life. Because of the hardly distinctive Ãœberaugenwülste, the face seems very anthropoid in the upper part, but however, the strongly projecting jaw-region ruins this impression again. Also they carry approximately 20 cm high to it with adult men and 10 cm at the side sticking out, gray-black Backenwülste from solid connective tissue and the then strongly developed Kehlsack with. This can pick up up to six liters of air and then passes around about the neck as far as to the shoulder-leaves. If one also only rarely hears the dull reputation of such old men, the resonance-function of this sack probably certainly is.
The body is covered with reddish-brown, long-swirling hair, that becomes up to 50 cm long above all at shoulders and arms. Even the Fingerbehaarung still reaches 10 cm of length.
Way of life Opposite the long fingers, the thumb is quite short: The Orang rather than a gripping-climber is a Hangler, can execute huge energies with flights over almost 20 m at the escape, however. At the ground, the Orang works quite awkwardly, since still the short ones, to it in the knees of bent legs none drive-witness is. Often then serves as crutches, between which the animal through-swings its body, also the tall and substantial poor and moves somewhat at the side from it-hurries. At short notice, Orangs can run also on two legs of course. Young also do this, with what they cross the arms over the head. Normally however, the family-associations pass quietly and almost silently through its treetop-precinct from approximately 8-10 animals on the food-search. This of very powerful Kaumuskeln, with bases at particular bone-combs on the head, probably serves the opening of hard-shell fruits. And also it in southeast-Asia spread, smelly, but very palatable major-Ian (fruit of the Zibethbaumes, Durio zibethinus) is thought highly of by the Orangs very much.
The nightly nest-construction goes amazingly fast off in that the animals in the tree-reams together-weave branches to a platform roughly highly above and after it with leaves and thin branches a camp, in which they partially should one-dig for itself, erects as well as. it covers itself with it. With the common Schlafengehen these sociable natures let often sound a buzzing chant that increases to a short-term climax and buzzing again subsided.
Reproduction A similar chant introduces also a man's combination-intent with what a loud bellow also represents the climax here and this love-song with mild buzzing fades away. The mutual love-game is accompanied with grunting tones by both partners. The physical union even takes place mute and usually in hanging attitude. However, some reports about Orangpaarungen in the zoo mean that the woman lies down on that occasion on the back and the man itself backwards bent before it as well as. crouches under it. The sex-openings point yes, differently than to the back with the human being, with the monkey-women.
The pregnancy lasts almost 9 months, and normally a child was born in each case that is completely helpless and touchingly umsorgt from the mother, cleaned and is nourished. The milk-glands almost are hidden in the armpit. they derive development-historically from perspiration-glands. The newborn weighs approximately 1,5 kg and clings at the mother, who however usually secures it with a hand, with help of its gripping-reflexes. Characteristically, Orangbabys master the Hangeln on four much sooner and more certainly than going as well as. two legs. Only with 3-4 years, they are cured of the mother's milk, with what the mother pushes spoon-feeded food-mash into the baby's mouth however already after few weeks. Some mothers nursed its children up to 6 years. So one can declare that Orangs have only so few descendants and are endangered highly in its continuance. The child begins with approximately 4 years to come off from the mother and to learn the vital performings in same age playgroups.
Orangs only grow slowly and become sexually mature only with 10 years. In freedom, they reach probably at most an old of 30 years so that an Orangfrau can bear only 4-6 children with quiet-durations of 4-6 years in its life. As the female cycle is interrupted with all the monkey (but also with the human being) during the quiet-time namely; no ovulation therefore takes place: The Laktationsamenorrhöe occurs.
Orangkinder join the keeper as mother-substitute with big financial contribution and laugh, cry and play exactly like a human-child in the first year of life. The human game-partner later is tested critically: The Orang touches it, then smells at its touch-hand and still then sniffs the hands of the human being extensively. Is decided over affection or refusal quite unequivocally after it. Also the look of the human being plays an important role on that occasion.
Endangering Only in the late sixties, the international zoo-trade committed itself not to buy up any Orangs more since such animals were carried off the mother or even whole families in all the rule under killing and the anyway endangered continuance of this second-biggest ape-type would be heading quickly for murders through such its irretrievable end. But although the animals are protected and the trade with them was controlled, the continuances go farther back since ever larger parts of the jungle are cleared. And so the total-continuance of these splendid animals is seriously endangered through habitat-destruction today.
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