For more than 25 years, renowned primatologist Birute Galdikas has lived among the orangutans of Borneo, studying their habits, defending them against loggers and poachers, and nurturing their orphaned youngsters. Now, with this extraordinary pictorial essay, Galdikas brings to life her work with these shy and endangered red apes. Taking readers to her remote rainforest headquarters, Galdikas draws on Karl Ammann's unparalleled photographs to present intimate portraits of the individual orangutans she's come to know and offers rare glimpses of their behaviour in the wild.