LOVE IS IN THE AIR

Mating behaviour is one of the most important forms of social interaction in the life of orangutans. This interaction occurs between male and female individuals and plays a vital role in ensuring the survival of a species that is increasingly threatened with extinction.

Wild orangutans typically reach sexual maturity between the ages of 14 and 18. However, in rehabilitated individuals, sexual maturity is suspected to occur earlier due to various environmental factors and past life experiences.

A Story of Gradual Courtship in the Wild
An interesting observation came from a male orangutan named Bugis and a female named Mori. These two individuals were together in the same enclosure before being released into the wild. The BOS team chose their release sites intentionally to be close to one another, allowing continued social interaction and ensuring a safe release process for the field team.

Once both had left their transport cages, Bugis immediately approached Mori. Just as with wild orangutans, his approach was gradual. Bugis followed Mori’s movements, both when she climbed trees and when she moved across the forest floor.

Bugis can’t take his eyes off Mori; he follows her movements wherever she goes.

Female Response and Social Approaches
In some cases, female orangutans may show avoidant behaviour when approached by a male. Experts do not yet fully understand the reasons behind this, but it is considered a natural part of their social dynamic. When the approach is successful, the male will usually initiate physical contact as a form of positive social interaction.

In Bugis and Mori’s case, Bugis gently touched Mori’s back and embraced her from behind as part of his courtship behaviour. He also displayed investigative behaviour before attempting copulation. Additionally, when not in close proximity to Mori, Bugis was observed making long calls to attract her attention.

Reproduction: A Complex Process
Observing orangutan mating behaviour directly in the wild is a valuable experience for researchers and field observers. This process shows that reproduction in orangutans is not instant; it involves complex and layered social interaction.

In the context of conservation, the ability of orangutans to form pair bonds and reproduce naturally in the wild is a significant indicator of successful rehabilitation. By preserving their natural habitats and providing safe living spaces, we increase the chances of witnessing the birth of a new wild-born generation—individuals who grow up with entirely natural instincts, abilities, and survival skills.

Learn more about our crucial conservation work here.

How Can You Help

There are lots of ways you can support orangutans and help ensure the survival of this precious ape.

Adopt an Orangutan

Adopt an Orangutan

Orangutans are endangered and at risk of extinction. Habitat destruction results in hundreds of orphaned orangutans, who rely on our care every year. You can help by adopting one. Their dedicated ‘nannies’ teach them everything they need to know for when it’s time to release them back to the wild. You can follow their progress through Forest School.

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Make a Donation

Make a Donation

Please help the Orangutans in their struggle for survival. Your donation is important and goes directly to BOS Indonesia. By donating, you are helping bring this noble yet endangered species back from the brink of extinction and on a path to freedom - from rescue to rehabilitation and release.

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The perfect gift for any occasion! Choose from our selection of instant gifts that directly support our orangutans. You can buy a wheelbarrow, provide food for an orangutan for two months or lots more. You will receive a certificate, personalised with the name of your choice - perfect gift for you or a friend.

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