AskDefine | Define gorilla

Dictionary Definition

gorilla n : largest anthropoid ape; terrestrial and vegetarian; of forests of central west Africa [syn: Gorilla gorilla]

User Contributed Dictionary




  1. The largest of the apes, native to the forests of central Africa, and known for its trait of knuckle-walking
  2. A big and brutish man or a thug; a goon or ruffian.


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gorilla (plural gorilla's)
  1. gorilla



  • /ˈgorilːɒ/|lang=hu


  1. gorilla



gorilla (plural gorilla)
  1. gorilla



sv-noun-reg-or gorill gorilla

Extensive Definition

Gorillas, the largest of the living primates, are ground-dwelling herbivores that inhabit the forests of Africa. Gorillas are divided into two species and (still under debate as of 2008) either four or five subspecies. The DNA of gorillas is 97%–98% identical to that of a human, and they are the next closest living relatives to humans after the two chimpanzee species.
Gorillas live in tropical or subtropical forests. Although their range covers a small percentage of Africa, gorillas cover a wide range of elevations. The Mountain Gorilla inhabits the Albertine Rift montane cloud forests of the Virunga Volcanoes, ranging in altitude from 2225 to 4267 m (7300-14000 ft). Lowland Gorillas live in dense forests and lowland swamps and marshes as low as sea level.


The American physician and missionary Thomas Staughton Savage first described the Western Gorilla (he called it Troglodytes gorilla) in 1847 from specimens obtained in Liberia. The name was derived from the Greek word Gorillai (a "tribe of hairy women") described by Hanno the Navigator, a Carthaginian navigator and possible visitor (circa 480 BC) to the area that later became Sierra Leone.


Until recently there were considered to be three gorilla species: the Western Lowland Gorilla, the Eastern Lowland Gorilla and the Mountain Gorilla. There is now agreement that there are two species with two subspecies each. More recently it has been claimed that a third subspecies exists in one of the species.
Primatologists continue to explore the relationships between various gorilla populations. The species and subspecies listed here are the ones upon which most scientists agree. Gorillas have a facial structure which is described as mandibular prognathism, that is, their mandible protrudes farther out than the maxilla.
The Eastern Gorilla is more darkly colored than the Western Gorilla, with the Mountain Gorilla being the darkest of all. The Mountain Gorilla also has the thickest hair. The Western Lowland Gorilla can be brown or grayish with a reddish forehead. In addition, gorillas that live in lowland forests are more slender and agile than the more bulky Mountain Gorilla. and, like humans, have individual finger prints.


Group life

A silverback is an adult male gorilla, typically more than 12 years of age and named for the distinctive patch of silver hair on his back. A silverback gorilla has large canine teeth that come with maturity. Black backs are sexually mature males of up to 11 years of age.
Silverbacks are the strong, dominant troop leaders. Each typically leads a troop (group size ranges from 5 to 30) and is in the center of the troop's attention, making all the decisions, mediating conflicts, determining the movements of the group, leading the others to feeding sites and taking responsibility for the safety and well-being of the troop. Younger males called blackbacks may serve as backup protection.
Males will slowly begin to leave their original troop when they are about 11 years old, traveling alone or with a group of other males for 2–5 years before being able to attract females to form a new group and start breeding. While infant gorillas normally stay with their mother for 3–4 years, silverbacks will care for weaned young orphans, though never to the extent of carrying the little gorillas. If challenged by a younger or even by an outsider male, a silverback will scream, beat his chest, break branches, bare his teeth, then charge forward. Sometimes a younger male in the group can take over leadership from an old male. If the leader is killed by disease, accident, fighting or poachers, the group will split up, as the animals disperse to look for a new protective male. Very occasionally, a group might be taken over in its entirety by another male. There is a strong risk that the new male may kill the infants of the dead silverback.

Food and foraging

Gorillas are herbivores, eating fruits, leaves, and shoots. Further they are classified as foliovores. Much like other animals that feed on plants and shoots, they sometimes ingest small insects also. Gorilla spend most of the day eating. Their large sagittal crest and long canines allow them to crush hard plants like bamboo. Lowland gorillas feed mainly on fruit while Mountain gorillas feed mostly on herbs, stems and roots.

Reproduction and lifespan

Gestation is 8½ months. There are typically 3 to 4 years between births. Infants stay with their mothers for 3–4 years. Females mature at 10–12 years (earlier in captivity); males at 11–13 years. Lifespan is between 30–50 years. The Dallas Zoo's Jenny is still alive at age 55. Recently, gorillas have been observed engaging in face-to-face sex, a trait that was once considered unique to humans and the Bonobo.


Gorillas are closely related to humans and are considered highly intelligent. A few individuals in captivity, such as Koko, have been taught a subset of sign language (see animal language for a discussion).

Tool use

The following observations were made by a team led by Thomas Breuer of the Wildlife Conservation Society in September 2005. Gorillas are now known to use tools in the wild. A female gorilla in the Nouabalé-Ndoki National Park in the Republic of Congo was recorded using a stick as if to gauge the depth of water whilst crossing a swamp. A second female was seen using a tree stump as a bridge and also as a support whilst fishing in the swamp. This means that all of the great apes are now known to use tools.
In September 2005, a two and a half year old gorilla in the Republic of Congo was discovered using rocks to smash open palm nuts inside a game sanctuary.. While this was the first such observation for a gorilla, over forty years previously chimpanzees had been seen using tools in the wild, famously 'fishing' for termites. It is a common tale among native peoples that gorillas have used rocks and sticks to thwart predators, even rebuking large mammals. Great apes are endowed with a semi-precision grip, and certainly have been able to use both simple tools and even weapons, by improvising a club from a convenient fallen branch. With training, in twentieth century carnival and circus acts, chimpanzees have been taught to operate simple motorbikes.


The word "gorilla" comes from the history of Hanno the Navigator, a Carthaginian explorer on an expedition on the west African coast. They encountered "a savage people, the greater part of whom were women, whose body were hairy, and whom our interpreters called Gorillae" . The word was then later used as the species name, though it is unknown whether what these ancient Carthaginians encountered were truly gorillas, another species of ape or monkeys, or humans. .
The first systematic study was not conducted until the 1920s, when Carl Akeley of the American Museum of Natural History traveled to Africa to hunt for an animal to be shot and stuffed. On his first trip he was accompanied by his friends Mary Bradley, a famous mystery writer, and her husband. After their trip, Mary Bradley wrote On the Gorilla Trail. She later became an advocate for the conservation of gorillas and wrote several more books (mainly for children). In the late 1920s and early 1930s, Robert Yerkes and his wife Ava helped further the study of gorillas when they sent Harold Bigham to Africa. Yerkes also wrote a book in 1929 about the great apes. After WWII, George Schaller was one of the first researchers to go into the field and study primates. In 1959, he conducted a systematic study of the Mountain Gorilla in the wild and published his work. Years later, at the behest of Louis Leakey and the National Geographic, Dian Fossey conducted a much longer and more comprehensive study of the Mountain Gorilla. It was not until she published her work that many misconceptions and myths about gorillas were finally disproved, including the myth that gorillas are violent.


Both species of gorilla are endangered, and have been subject to intense poaching for a long time. Threats to gorilla survival include habitat destruction and the bushmeat trade. In 2004 a population of several hundred gorillas in the Odzala National Park, Republic of Congo was essentially wiped out by the Ebola virus. A 2006 study published in Science concluded that more than 5,000 gorillas may have died in recent outbreaks of the Ebola virus in central Africa. The researchers indicated that in conjunction with commercial hunting of these apes creates "a recipe for rapid ecological extinction". Conservation efforts include the Great Ape Survival Project, a partnership between the United Nations Environment Programme and the United Nations Educational, Scientific and Cultural Organization, and also an international treaty, the Agreement on the Conservation of Gorillas and Their Habitats, concluded under UNEP-administered Convention on Migratory Species. The Gorilla Agreement is the first legally-binding instrument exclusively targeting Gorilla conservation and comes into effect on 1 June 2008.

Cultural references

Since they came to the attention of western society in the 1860s, gorillas have been a recurring element of many aspects of popular culture and media. For example, gorillas have featured prominently in monstrous fantasy films such as King Kong, and pulp fiction such as the stories of Tarzan and Conan have featured gorillas as physical opponents to the titular protagonists.

See also


External links

gorilla in Arabic: غوريلا
gorilla in Bengali: গরিলা
gorilla in Catalan: Goril·la
gorilla in Czech: Gorila
gorilla in Danish: Gorilla
gorilla in German: Gorillas
gorilla in Spanish: Gorilla
gorilla in Esperanto: Gorilo
gorilla in French: Gorille
gorilla in Scottish Gaelic: Goiriola
gorilla in Galician: Gorila
gorilla in Korean: 고릴라
gorilla in Croatian: Gorile
gorilla in Ido: Gorilo
gorilla in Indonesian: Gorila
gorilla in Italian: Gorilla (genere)
gorilla in Hebrew: גורילה
gorilla in Georgian: გორილა
gorilla in Kongo: Kibubu
gorilla in Lithuanian: Gorilos
gorilla in Limburgan: Gorilla
gorilla in Hungarian: Gorilla
gorilla in Dutch: Gorilla's
gorilla in Japanese: ゴリラ
gorilla in Norwegian: Gorilla
gorilla in Polish: Goryl
gorilla in Portuguese: Gorila
gorilla in Quechua: Gurila
gorilla in Russian: Гориллы
gorilla in Simple English: Gorilla
gorilla in Slovak: Gorila
gorilla in Serbian: Гориле
gorilla in Finnish: Gorilla
gorilla in Swedish: Gorillor
gorilla in Tamil: கொரில்லா
gorilla in Thai: ลิงกอริลลา
gorilla in Turkish: Goril
gorilla in Ukrainian: Горила
gorilla in Chinese: 大猩猩

Synonyms, Antonyms and Related Words

Antaeus, Atlas, Barbary ape, Briareus, Brobdingnagian, Cain, Charles Atlas, Cyclops, Goliath, Hercules, Mafioso, Polyphemus, Samson, Superman, Tarzan, Titan, Young Turk, angwantibo, anthropoid ape, apache, ape, assassin, assassinator, aye-aye, baboon, battler, beast, beldam, belligerent, belted knight, berserk, berserker, bickerer, blade, bloodletter, bloodshedder, bomber, bravo, brawler, bruiser, brute, bully, bullyboy, burker, butcher, button man, cannibal, capuchin, chacma, chimpanzee, colossus, combatant, competitor, contender, contestant, cutthroat, demon, desperado, devil, disputant, dragon, drill, duelist, enforcer, entellus, eradicator, executioner, exterminator, fencer, feuder, fiend, fighter, fighting cock, fire-eater, firebrand, foilsman, fury, gamecock, garroter, giant, gibbon, gladiator, goon, guenon, guereza, gun, gunman, gunsel, hanuman, hardnose, hatchet man, head-hunter, hell-raiser, hellcat, hellhound, hellion, hit man, holy terror, homicidal maniac, homicide, hood, hoodlum, hooligan, hothead, hotspur, incendiary, jouster, killer, knight, langur, lemur, macaque, mad dog, madcap, man, man-eater, man-killer, mandrill, manslayer, marmoset, massacrer, matador, militant, monster, mountain gorilla, mug, mugger, murderer, muscle man, orang, orangutan, pesticide, plug-ugly, poison, poisoner, powerhouse, proboscis monkey, quarreler, rapist, revolutionary, rhesus, rioter, rival, rodman, rough, roughneck, rowdy, ruffian, sabreur, saki, savage, scrapper, scuffler, she-wolf, slaughterer, slayer, spitfire, squabbler, stalwart, strangler, strong arm, strong man, strong-arm man, strong-armer, struggler, swashbuckler, sword, swordplayer, swordsman, termagant, terror, terrorist, the mighty, the strong, thug, tiger, tigress, tilter, torpedo, tough, tough guy, tower of strength, trigger man, tussler, ugly customer, violent, virago, vixen, wild beast, witch, wolf, wrangler
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