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Orangutan Genome (part 2): Unexpected Genetic Diversity

Planet earth is currently home to seven billion people . In comparison, the approximately 60,000 orangutans remaining in the wild represent an exceedingly small number. Despite this 140,000-fold difference in current population size, analysis of the orangutan genome yields a surprising discovery: orangutans are much more genetically diverse than humans.

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Orangutan Natural History and Socioecology

Orangutans are the only great ape outside of Africa and they are uniquely adapted to the tropical forests of Southeast Asia. During the Pleistocene, orangutans ranged throughout forests in Java, Sumatra, Borneo, Vietnam and southern China. As climate slowly changed over nearly 1.8 million years, the orangutan range shifted southward. Orangutan populations have declined dramatically, perhaps by as much as 97%, in the 20th century

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Analyzing Hydrology in Tanjung Puting’s Peat Swamp Forests

It may seem strange to think of tropical forests and swamps together… but not to orangutans who call peat swamp forests home. The flooded river networks of Tanjung Puting National Park and Lamandau Reserve are key components of forest ecology. Without them, forests and fruit would be distributed differently, and so would orangutans and other species dependent on these unique ecosystem.

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Climate, Forest Ecology and Orangutans

Indonesia consists of approximately 17,000 islands, interspersed with warm seas, strung out along the equator between mainland Asia and Australia. Indonesia's wet tropical climate is characterized by seasonal changes in rainfall rather than temperature. Warm waters, which make up more than 80% of Indonesia, are responsible for the almost constant temperatures on land. Seasonal variation in Indonesia's

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