Often they are more than a metre across. Baby orangutans are born in the nests . Essentially they are vegetarian and do not eat meat or fish. No, they are active during daylight hours and go to bed at sunset - 7pm. In the wild an average lifespan is 45-50 years.
Infants cry like a baby, and young ones scream and throw tantrums.
Adult male orangutans inflate their throat pouch to produce the 'long call' . It can be heard for up to a kilometre in the forest. An infant weighs around half a kilogram at birth . Adult females grow to 1.3 metres in height and weigh around 45kg. Males can reach 1.8 metres in height and can weigh over 120kg.