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Line 9: − − − '''Range countries'''<br> − [[Malaysia]], [[Indonesia]]
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'''Range countries'''<br>
[[Malaysia]], [[Indonesia]]
Northeast Bornean orangutans (''Pongo pygmaeus morio'') are native to the island of Borneo, inhabiting the Malaysian states of Sabah and Sarawak, as well as two of the Indonesian Provinces of Kalimantan: North and East Kalimantan. Most of the remaining population of Northeast Bornean orangutans is concentrated in Sabah and East Kalimantan, with small scattered groups also present in North Kalimantan.
Northeast Bornean orangutans (''Pongo pygmaeus morio'') are native to the island of Borneo, inhabiting the Malaysian states of Sabah and Sarawak, as well as two of the Indonesian Provinces of Kalimantan: North and East Kalimantan. Most of the remaining population of Northeast Bornean orangutans is concentrated in Sabah and East Kalimantan, with small scattered groups also present in North Kalimantan.
Bornean orangutans lead a predominantly solitary existence, seldom congregating in groups. Males, as the dispersing sex, depart from their birthplaces upon attaining sexual maturity (typically at 10–12 years old) to establish expansive territories spanning several hundred hectares. Female territories are comparatively smaller, their actual size influenced by forest composition and food resource availability. These orangutans reproduce at a slow pace, typically giving birth to one offspring every 6–8 years, a factor contributing to their heightened vulnerability to hunting pressures. Female sexual maturity is attained at 10–15 years old (Kingsley 1981).
Bornean orangutans lead a predominantly solitary existence, seldom congregating in groups. Males, as the dispersing sex, depart from their birthplaces upon attaining sexual maturity (typically at 10–12 years old) to establish expansive territories spanning several hundred hectares. Female territories are comparatively smaller, their actual size influenced by forest composition and food resource availability. These orangutans reproduce at a slow pace, typically giving birth to one offspring every 6–8 years, a factor contributing to their heightened vulnerability to hunting pressures. Female sexual maturity is attained at 10–15 years old (Kingsley 1981).