Final answer:
Dian Fossey was a renowned primatologist who studied mountain gorillas in Rwanda, contributed significantly to primatology, and engaged in conservation efforts until her untimely death in 1985.
Step-by-step explanation:
Dian Fossey was a prominent primatologist and anthropologist who dedicated her life to the study of gorillas. She conducted extensive fieldwork in Rwanda, observing and documenting the behavior of mountain gorillas in their natural habitat. Fossey's work played a critical role in increasing our understanding of gorilla behavior, social structures, and the threats they face due to poaching and habitat loss. Her conservation efforts led to the establishment of the Karisoke Research Center in Rwanda's Virunga Mountains, a hub for ongoing primate research and conservation. Sadly, Dian Fossey's life and work were cut short when she was murdered in 1985, a case that remains unresolved, but her legacy continues to impact primatology and conservation efforts.