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The chimpanzee, also simply known as the chimp, is a species of great ape native to the forests and savannahs of tropical Africa. It has four confirmed subspecies and a fifth proposed one. When its close relative the bonobo was more commonly known as the pygmy chimpanzee, this species was often called the common chimpanzee or the robust chimpanzee. The chimpanzee and the bonobo are the only species in the genus Pan. Evidence from fossils and DNA sequencing shows that Pan is a sister taxon to the human lineage and is thus humans' closest living relative. The chimpanzee is covered in coarse black hair, but has a bare face, fingers, toes, palms of the hands, and soles of the feet. It is larger and more robust than the bonobo, weighing 40–70 kg (88–154 lb) for males and 27–50 kg (60–110 lb) for females and standing 150 cm.
Homininae, also called "African hominids" or "African apes", is a subfamily of Hominidae. It includes two tribes, with their extant as well as extinct species: 1) the tribe Hominini ―and 2) the tribe Gorillini (gorillas). Alternatively, the genus Pan is sometimes considered to belong to its own third tribe, Panini. Homininae comprises all hominids that arose after orangutans split from the line of great apes. The Homininae cladogram has three main branches, which lead to gorillas and to humans and chimpanzees. There are two living species of Panina and two living species of gorillas, but only one extant human species. Traces of extinct Homo species, including Homo floresiensis have been found with dates as recent as 40,000 years ago. Organisms in this subfamily are described as hominine or hominines.
Primates is an order of mammals, which is further divided into the strepsirrhines, which include lemurs, galagos, and lorisids; and the haplorhines, which include tarsiers; and the simians, which include monkeys and apes. Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted for life in tropical forests: many primate characteristics represent adaptations to the challenging environment among tree tops, including large brain sizes, binocular vision, color vision, vocalizations, shoulder girdles allowing a large degree of movement in the upper limbs, and opposable thumbs that enable better grasping and dexterity. Primates range in size from Madame Berthe's mouse lemur, which weighs 30 g (1 oz), to the eastern gorilla, weighing over 200 kg (440 lb). There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and six in the 2020s.
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, members of the chimpanzee/bonobo subtribe Panina—composed entirely by the genus Pan—are collectively termed panins.
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" or "gracile 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.
Great ape personhood is a movement to extend personhood and some legal protections to the non-human members of the great ape family: bonobos, chimpanzees, gorillas, and orangutans.
Apes are a clade of Old World simians native to sub-Saharan Africa and Southeast Asia, which together with its sister group Cercopithecidae form the catarrhine clade, cladistically making them monkeys. Apes do not have tails due to a mutation of the TBXT gene. In traditional and non-scientific use, the term ape can include tailless primates taxonomically considered Cercopithecidae, and is thus not equivalent to the scientific taxon Hominoidea. There are two extant branches of the superfamily Hominoidea: the gibbons, or lesser apes; and the hominids, or great apes.
Twycross Zoo is a medium to large zoo near Norton Juxta Twycross, Leicestershire. The zoo has the largest collection of monkeys and apes in the Western World, and in 2006 re-launched itself as "Twycross Zoo – The World Primate Centre".
The Great Ape Project (GAP), founded in 1993, is an international organization of primatologists, anthropologists, ethicists, and others who advocate a United Nations Declaration of the Rights of Great Apes that would confer basic legal rights on non-human great apes: bonobos, chimpanzees, gorillas and orangutans.
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 her 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. The cognitive tradeoff hypothesis suggests that human language skills evolved at the expense of the short-term and working memory capabilities observed in other hominids.
The humanzee is a hypothetical hybrid of chimpanzee and human, thus a form of human–animal hybrid. Serious attempts to create such a hybrid were made by Soviet biologist Ilya Ivanovich Ivanov in the 1920s, and possibly by researchers in China in the 1960s, though neither succeeded.
The International Primate Protection League (IPPL) is a not-for-profit animal welfare organization founded in 1973 in Thailand by Shirley McGreal.
The Great Apes Survival Partnership (GRASP) is a UNEP and UNESCO-led World Summit on Sustainable Development (WSSD) Type II Partnership, established in 2001, that aims to conserve the non-human great apes and their habitats—primarily forested tropical ecosystems that provide important services to humanity, through pro-poor conservation and sustainable development strategies.
Experiments involving non-human primates (NHPs) include toxicity testing for medical and non-medical substances; studies of infectious disease, such as HIV and hepatitis; neurological studies; behavior and cognition; reproduction; genetics; and xenotransplantation. Around 65,000 NHPs are used every year in the United States, and around 7,000 across the European Union. Most are purpose-bred, while some are caught in the wild.
The wildlife of the Democratic Republic of the Congo includes its flora and fauna, comprising a large biodiversity in rainforests, seasonally flooded forests and grasslands.
Self-domestication is a scientific hypothesis that suggests that, similar to domesticated animals, there has been a process of artificial selection among members of the human species conducted by humans themselves. In this way, during the process of hominization, a preference for individuals with collaborative and social behaviors would have been shown to optimize the benefit of the entire group: docility, language, and emotional intelligence would have been enhanced during this process of artificial selection. The hypothesis is raised that this is what differentiated Homo sapiens from Homo neanderthalensis and Homo erectus.
The Hominidae, whose members are known as the great apes or hominids, are a taxonomic family of primates that includes eight extant species in four genera: Pongo ; Gorilla ; Pan ; and Homo, of which only modern humans remain.
Simone Susanne Pika is a German ethologist and primatologist investigating the evolution and development of language, cognition and plasticity by focusing on distinct model systems such as corvids, great apes, monkeys and dolphins. Since 2017, she co-directs the Ozouga Chimpanzee Project, Loango National Park in Gabon. She is a full professor at the Institute of Cognitive Science, Osnabrück University, Germany.
References
- ↑ "International Bans | Laws | Release & Restitution for Chimpanzees". releasechimps.org. Retrieved 2019-11-08.
- ↑ Knight, Andrew (2008-06-02). "The beginning of the end for chimpanzee experiments?". Philosophy, Ethics, and Humanities in Medicine. 3 (1): 16. doi: 10.1186/1747-5341-3-16 . ISSN 1747-5341. PMC 2432070 . PMID 18518999.
- ↑ Benz-Schwarzburg, Judith; Knight, Andrew (2011). "Cognitive Relatives yet Moral Strangers?". Journal of Animal Ethics. 1 (1): 9–36. doi:10.5406/janimalethics.1.1.0009. ISSN 2156-5414. JSTOR 10.5406/janimalethics.1.1.0009. S2CID 54677954.
- ↑ "ANIMAL RESEARCH AMENDMENT (PRIMATES) BILL - Mark Pearson MLC - Mark Pearson". Archived from the original on 2019-03-27. Retrieved 2019-11-08.
- ↑ "RIS - Tierversuchsgesetz 2012 - Bundesrecht konsolidiert, Fassung vom 08.11.2019". www.ris.bka.gv.at. Retrieved 2019-11-08.
- ↑ "Austria Bans Experiments on Great Apes | Related News | News". www.releasechimps.org. Retrieved 2019-11-04.
- ↑ "Austria | World Animal Protection". api.worldanimalprotection.org. Retrieved 2019-11-08.
- ↑ "DIRECTIVE 2010/63/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL".
- ↑ "Animal Welfare Act 1999 No 142 (as at 08 September 2018), Public Act 85 Restrictions on use of non-human hominids – New Zealand Legislation". www.legislation.govt.nz. Retrieved 2019-11-07.
