Gives a history of the appearance of the Ebola and Marburg viruses and details the characteristics of the Ebola virus and techniques used to research it. Ebola, or hemorrhagic fever (Ebola HF), is a disease that affects both humans and nonhuman primates, including monkeys, gorillas, and chimpanzee.
Developments in cognitive science indicate that human and nonhuman primates share a range of behavioral and physiological characteristics that speak to the issue of language origins. Three major themes: First, it is argued that scientists in animal behavior and anthropology need to move beyond theoretical debate to a more empirically focused and comparative approach to language. Second, those empirical and comparative methods are described, revealing underpinnings of language, some of which are shared by humans and other primates and others of which are unique to humans. Third, evolutionary challenges that led to adaptive changes in communication over time are considered with an eye toward understanding various constraints that channeled the process.
