An ethologist is a scientist who studies the behavior of animals, particularly social animals such as primates and canids[?]. Perhaps the best-known ethologist is Jane Goodall, a British scientist who has spent much of her life observing bands of chimpanzees in Gombe[?] National Park in the Africannation of Tanzania. Another well-known ethologist was Dian Fossey, who was murdered while attempting to study and protect gorillas in the Rwandan province of Ruhengeri[?]. Current evidence suggests that her murder was masterminded by Protais Zigiranyirazo[?], former Governor of the Ruhengeri province, who is also known for his creation of the death squads that resulted in the deaths of over 800,000 Rwandans in 1994.