Pioneering Primatologist Birute Galdikas Dies at 79

The Canadian researcher was a trimate with Jane Goodall and Dian Fossey, devoting her life to orangutan conservation in Borneo.

Apr. 3, 2026 at 5:25pm

Got story updates? Submit your updates here. ›

A bold, abstract painting in muted greens, browns, and blues, featuring sweeping geometric shapes and precise botanical spirals that evoke the complex interconnections between primates, forests, and human activity, conveying the delicate balance of the natural world.The pioneering work of primatologist Birute Galdikas shed light on the intricate relationship between orangutans, their forest habitats, and the human forces that threaten their survival.Los Angeles Today

Birute Galdikas, a renowned primatologist who spent over 50 years studying and protecting endangered orangutans in Borneo, has died at the age of 79 in Los Angeles. Galdikas was part of the 'trimate' group of pioneering female primatologists mentored by Louis Leakey, along with Jane Goodall and Dian Fossey. She established Camp Leakey in what is now Tanjung Puting National Park and documented orangutan behavior in unprecedented detail, while also fighting deforestation, the pet trade, and habitat loss to save the species.

Why it matters

Galdikas' lifelong dedication to orangutan conservation brought global attention to the plight of the endangered great apes and the threats they face from human activity. As one of the 'trimates' alongside Goodall and Fossey, she helped establish primatology as a critical field of scientific research and inspired generations of conservationists.

The details

Galdikas arrived in Borneo in 1971 and built Camp Leakey, where she endured isolation, illness, and even kidnapping while documenting orangutan behavior in unprecedented detail. Her National Geographic cover stories in the 1970s brought worldwide attention to the species' decline and her rehabilitation work, and she and her team ultimately returned more than 500 confiscated or captive orangutans to the wild. Galdikas spent decades fighting deforestation, the orangutan pet trade, and habitat loss, warning that if orangutans vanished from the wild, 'paradise is gone.'

  • Galdikas arrived in Borneo in 1971 to begin her research.
  • Galdikas founded the Orangutan Foundation International in 1986.
  • Galdikas passed away in Los Angeles on April 3, 2026, at the age of 79.

The players

Birute Galdikas

A Canadian primatologist who dedicated over 50 years to studying and protecting endangered orangutans in Borneo, and was part of the 'trimate' group of pioneering female primatologists mentored by Louis Leakey.

Jane Goodall

A renowned primatologist and ethologist who was part of the 'trimate' group mentored by Louis Leakey, along with Birute Galdikas and Dian Fossey.

Dian Fossey

A primatologist and conservationist who was part of the 'trimate' group mentored by Louis Leakey, along with Jane Goodall and Birute Galdikas, and was known for her research on mountain gorillas.

Louis Leakey

A renowned paleoanthropologist who mentored the 'trimate' group of pioneering female primatologists, including Birute Galdikas, Jane Goodall, and Dian Fossey.

Ruth Linsky

A researcher at Simon Fraser University in Canada who praised Galdikas' unique dedication to orangutan conservation.

Got photos? Submit your photos here. ›

What they’re saying

“Like true siblings, we did not choose each other, but were fated to be tied together, often referred to as the 'trimates'.”

— Birute Galdikas, Primatologist

“Everything she did was for them. She was a really unique soul in that way.”

— Ruth Linsky, Researcher, Simon Fraser University

The takeaway

Birute Galdikas' lifelong dedication to orangutan conservation and research has left an indelible mark on the field of primatology and the global effort to protect endangered species. Her work, alongside fellow 'trimates' Jane Goodall and Dian Fossey, has inspired generations of scientists and conservationists to follow in their footsteps.