Dian Fossey was an American zoologist and primatologist who dedicated her life to studying and protecting mountain gorillas in Rwanda, becoming a leading advocate for their conservation.
Julian Huxley was a British evolutionary biologist, philosopher, and humanist, renowned for his contributions to the modern synthesis of evolution and his role in founding UNESCO.
Konrad Lorenz was an Austrian zoologist and Nobel laureate, renowned for his pioneering work in ethology and comparative psychology.
Niko Tinbergen was a Dutch biologist and ornithologist, known for his pioneering work in animal behavior and ethology, earning him a Nobel Prize in Physiology or Medicine.