Orangutans possess immense upper body strength, with arms capable of exerting force far beyond that of a human. While generally non-aggressive, they can react defensively if they feel threatened, ...

Along with Dian Fossey and Jane Goodall, Biruté Galdikas, 79, made ground-breaking discoveries about one of humankind’s ...

Biruté Galdikas was the third of the so-called Trimates, alongside Dian Fossey and Jane Goodall. She spent thousands of hours ...

Biruté Galdikas, who has died aged 79, was the world’s leading authority on orangutans and the least well-known of the ...

In the early 1970s, orangutans occupied an ambiguous place in science. They were known to exist, of course, but remained ...

The orangutan -- In pursuit of human ancestry -- The search for our closest relatives -- The riddle of relatedness -- Primates first, hominoids last -- The hominoids -- Humans and orangutans -- ...