The forest surrounding Bukit lawang still offers big opportunities to observe semi wild and wild Sumatran orangutans. adults of this species stand to 1.4meters tall and male weigh up to 80 kilograms. females are smaller 0.9 meters on average, and they weigh up to 40 kilograms. their life span is long.
often around 45 years in the wild .and Sumatran orangutans have the longest inter -birth interval of any land-living animal, producing a single infant only around once every 8 years. The infants stay with their mother until they are 7-10 years old thus a female will usually have no more than 3 offspring in her life.

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# Bukit Lawang
# Orangutan bungalow Bukit lawang
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