The bonobo, also historically called the pygmy chimpanzee, is an endangered great ape and one of the two species making up the genus Pan. While bonobos are, today, recognized as a distinct species in their own right, they were initially thought to be a subspecies of Pan troglodytes, due to the physical similarities between the two species. Taxonomically, the members of the chimpanzee/bonobo subtribe Panina—composed entirely by the genus Pan—are collectively termed panins.
Robert Mearns Yerkes was an American psychologist, ethologist, eugenicist and primatologist best known for his work in intelligence testing and in the field of comparative psychology.
The genus Pan consists of two extant species: the chimpanzee and the bonobo. Taxonomically, these two ape species are collectively termed panins. The two species were formerly collectively called "chimpanzees" or "chimps"; if bonobos were recognized as a separate group at all, they were referred to as "pygmy chimpanzees". Together with humans, gorillas, and orangutans they are part of the family Hominidae. Native to sub-Saharan Africa, chimpanzees and bonobos are currently both found in the Congo jungle, while only the chimpanzee is also found further north in West Africa. Both species are listed as endangered on the IUCN Red List of Threatened Species, and in 2017 the Convention on Migratory Species selected the chimpanzee for special protection.
Washoe was a female common chimpanzee who was the first non-human to learn to communicate using American Sign Language (ASL) as part of an animal research experiment on animal language acquisition.
Franciscus Bernardus Maria "Frans" de Waal is a Dutch primatologist and ethologist. He is the Charles Howard Candler Professor of Primate Behavior in the Department of Psychology at Emory University in Atlanta, Georgia, director of the Living Links Center at the Yerkes National Primate Research Center at Emory, and author of numerous books including Chimpanzee Politics (1982) and Our Inner Ape (2005). His research centers on primate social behavior, including conflict resolution, cooperation, inequity aversion, and food-sharing. He is a member of the United States National Academy of Sciences and the Royal Netherlands Academy of Arts and Sciences.
Animal languages are forms of non-human animal communication that show similarities to human language. Animals communicate through a variety of signs, such as sounds or movements. Signing among animals may be considered a form of language if the inventory of signs is large enough. The signs are relatively arbitrary, and the animals seem to produce them with a degree of volition. In experimental tests, animal communication may also be evidenced through the use of lexigrams by chimpanzees and bonobos.
Kanzi, also known by the lexigram , is a male bonobo who has been the subject of several studies on great ape language. According to Sue Savage-Rumbaugh, a primatologist who has studied the bonobo throughout his life, Kanzi has exhibited advanced linguistic aptitude.
Research into great ape language has involved teaching chimpanzees, bonobos, gorillas and orangutans to communicate with humans and each other using sign language, physical tokens, lexigrams, and imitative human speech. Some primatologists argue that the use of these communication methods indicate primate "language" ability, though this depends on one's definition of language.
Nyota, also known by the lexigram , is a bonobo. Nyota was born at the Language Research Center at Georgia State University. His mother was Panbanisha and his father was P-suke. With Panbanisha's death on November 6, 2012, Nyota became the sole surviving member of his immediate family.
Lana was a female chimpanzee, the first to use lexigrams in language research. She was born at the Yerkes National Primate Research Center of Emory University, and the project she was allocated to when 1 year old, the LANguage Analogue project led by Duane Rumbaugh, was named after her with the acronym LANA because the project team felt that her identity was well worth preserving.
Ernst von Glasersfeld was a philosopher, and emeritus professor of psychology at the University of Georgia, research associate at the Scientific Reasoning Research Institute, and adjunct professor in the Department of Psychology at the University of Massachusetts Amherst. He was a member of the board of trustees of the American Society for Cybernetics, from which he received the McCulloch Memorial Award in 1991. He was a member of the scientific board of the Instituto Piaget, Lisbon. Glasersfeld is known for the development of radical constructivism.
The Mind of an Ape is a 1983 book by David Premack and his wife Ann James Premack. The authors argue that it is possible to teach language to (non-human) great apes. They write: "We now know that someone who comprehends speech must know language, even if he or she cannot produce it."
Loulis is a chimpanzee who has learned to communicate in American Sign Language.
Emily Sue Savage-Rumbaugh is a psychologist and primatologist most known for her work with two bonobos, Kanzi and Panbanisha, investigating their linguistic and cognitive abilities using lexigrams and computer-based keyboards. Originally based at Georgia State University's Language Research Center in Atlanta, Georgia, she worked at the Iowa Primate Learning Sanctuary in Des Moines, Iowa from 2006 until her departure in November 2013. She currently sits on the Board of Directors of Bonobo Hope.
William M. Fields, also known by the lexigram , is an American qualitative investigator studying language, culture, and tools in non-human primates. He is best known for his collaboration with Sue Savage-Rumbaugh beginning in 1997 at the Language Research Center of Georgia State University. There he co-reared Nyota , a baby bonobo, with Panbanisha , Kanzi and Savage-Rumbaugh . Fields and Savage-Rumbaugh are the only scientists in the world carrying out language research with bonobos.
Primate cognition is the study of the intellectual and behavioral skills of non-human primates, particularly in the fields of psychology, behavioral biology, primatology, and anthropology.
Panbanisha, also known by the lexigram , was a female bonobo that featured in studies on great ape language by Professor Sue Savage-Rumbaugh. Her name is Swahili for "to cleave together for the purpose of contrast."
Theory of mind in animals is an extension to non-human animals of the philosophical and psychological concept of theory of mind (ToM), sometimes known as mentalisation or mind-reading. It involves an inquiry into whether non-human animals have the ability to attribute mental states to themselves and others, including recognition that others have mental states that are different from their own. To investigate this issue experimentally, researchers place non-human animals in situations where their resulting behavior can be interpreted as supporting ToM or not.
Panpanzee the chimpanzee, was born at the Language Research Center at Georgia State University in Atlanta, Georgia. She lived the rest of her life at the Great Ape Trust in Iowa. Her half-brother is Kanzi, a famous bonobo. Kanzi learned 348 lexigram symbols and over 3,000 words from the English language over her lifespan.
