S4|EP23 - Orangutan Conservation and the Fight to Save Southeast Asia’s Rainforests | Leif Cocks

Southeast Asia’s rainforests are among the most biologically rich ecosystems on Earth, yet they are disappearing at an alarming rate. In this episode of the Think Wildlife Podcast, we speak with Leif Cocks, founder of The Orangutan Project, about the urgent challenge of protecting the last remaining rainforests of Indonesia and Malaysia and the wildlife that depends on them.

Orangutans are one of the most intelligent and self-aware species on the planet, but their survival is tightly linked to the fate of Southeast Asia’s forests. In this conversation, Leif explains why orangutans struggle to survive in captivity and why protecting wild rainforest ecosystems is the only long-term solution for their conservation. Research has shown that orangutans often live shorter lives in captivity than they do in the wild, highlighting the importance of protecting their natural habitats and supporting rehabilitation and reintroduction programs.

The episode explores how The Orangutan Project works to rescue, rehabilitate, and release displaced orangutans while simultaneously focusing on the bigger picture: safeguarding large, intact rainforest ecosystems. Every individual orangutan rescued represents not only an animal in need but also a crucial genetic resource for a critically endangered species whose survival depends on protecting remaining populations.

Beyond orangutans, the conversation expands to the wider conservation landscape of Southeast Asia. Leif discusses the plight of Sumatran tigers, Asian elephants, and other threatened species that share the same rainforest ecosystems. With fewer than 300 Sumatran tigers remaining, fragmented populations and habitat loss have made long-term survival increasingly difficult. Conservation efforts now require innovative strategies such as metapopulation management, where individuals are carefully moved between isolated populations to maintain genetic diversity.

The discussion also examines the major threats facing wildlife across Indonesia and Malaysia. These include deforestation for agriculture, illegal wildlife trade, poaching, and human-wildlife conflict. In many cases, the destruction of rainforest habitats forces animals into farmland and villages, creating conflict with local communities and leading to further wildlife losses.

Leif also highlights the importance of protecting large rainforest landscapes, particularly lowland riverine forests, which support some of the highest biodiversity in Southeast Asia. Conservation programs supported by The Orangutan Project focus on securing these ecosystems through habitat protection, ranger patrols, wildlife monitoring, community engagement, and reforestation initiatives.

A key theme of the episode is that successful conservation must include people. Initiatives such as the Forests for People program work with local communities to support education, sustainable livelihoods, and improved food security while ensuring forests remain intact for wildlife and future generations.

This episode provides a deep dive into the realities of conservation in Southeast Asia—from orangutan rescue and rehabilitation to the protection of entire rainforest ecosystems that support elephants, tigers, and countless other species. It is a powerful reminder that saving wildlife ultimately depends on protecting the landscapes they call home. Leif is also the founder of The International Tiger Project and The International Elephant Project.

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