Orangutans are lonesome creatures . Adult males inhabit mainly alone and only come together with females to mate . Adult females live with their young. From time to time, adults will live with other grownups for short time periods in small temporary groups . Orangutans spend most of their lives in a "home range" of 0.4 to 3.7 square miles. Females have a smaller home range than males. Sometimes the home ranges of individual orangutans overlap.
Females are able to give birth after age seven, but in wild they generally do not mate until age 12. They give birth to one immature at a time, which clings to its mothers belly until it is about a year old . When an Pongo pygmaeus passes on adolescence at about four or five years , it gets more independent but may look for protective covering from its mother until it passes on seven to eight years .
Orangutans feed chiefly on fruits , specially wild figs. They besides eat other kinds of vegetation , insects, little vertebrates and birds eggs.
Orangutans are arboreal creatures , which means they spend most of their lives slowly walking, swinging and climbing through dense rain forests.
Species
Bornean Orangutan
Common Name: Bornean orangutan; Orangoutan de Borneo(Fr); Orangután de Borneo(Sp)
Scientific Name: Pongo pygmaeus
Habitat: Tropical and Subtropical Moist Broadleaf Forests
Location: Borneo
Population: Central Bornean = 38,000; NW Bornean = 3,000
Females are able to give birth after age seven, but in wild they generally do not mate until age 12. They give birth to one immature at a time, which clings to its mothers belly until it is about a year old . When an Pongo pygmaeus passes on adolescence at about four or five years , it gets more independent but may look for protective covering from its mother until it passes on seven to eight years .
Orangutans feed chiefly on fruits , specially wild figs. They besides eat other kinds of vegetation , insects, little vertebrates and birds eggs.
Orangutans are arboreal creatures , which means they spend most of their lives slowly walking, swinging and climbing through dense rain forests.
Species
Bornean Orangutan
Common Name: Bornean orangutan; Orangoutan de Borneo(Fr); Orangután de Borneo(Sp)
Scientific Name: Pongo pygmaeus
Habitat: Tropical and Subtropical Moist Broadleaf Forests
Location: Borneo
Population: Central Bornean = 38,000; NW Bornean = 3,000
The Bornean orangutan is now recognised as a different species from its Sumatra relative. Three subspecieses are recognised : Pongo pygmaeus pygmaeus, P.p. morio, and P. p. wurmbii, the most common Bornean subspecies. Although extensive , the latter's habitat is progressively fragmentized in the remaining drench and lowland dipterocarp forests of Central and West Kalimantan.
It is approximated that about one third of Borneo's orangutan populations were lost during the 1997 98 forest fires. On the Indonesian side of Borneo, populations of this subspecieses are not getting along substantially either.
Although some populations inhabit inside protected surface areas, illegal logging stock still takes place within these area and therefore continues a major threat to the survival of this species .
Sumatran Orangutan
Common Name: Sumatran orangutan;Orangoutan de Sumatra (Fr);Orangután de Sumatra (Sp)
Scientific Name: Pongo abelii
Habitat: Tropical and Subtropical Moist Broadleaf Forests
Location: Northern Sumatra
Population: Approximately 7,500 individuals in the wild
The Sumatran orangutan is the most critically endangered of the two orangutan species, and differs from its Borneo relative to upto some extents in physical appearance and behavioural language. Found only in the northern and western provinces of Sumatra, Indonesia, the species is losing fast its natural habitat to agriculture and human settlements.
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