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Science 5 pages, words The acts of cannibalism and infanticide are very apparent in the behavior of the chimpanzee. Many African studies show that wild chimpanzees kill and eat infants of their own species Goodall, Although there is not a clear answer why chimps engage in this very violent and sometimes gruesome behavior there are many ideas and suggestions.
This essay will deal with chimpanzee aggression, cannibalism and infanticide. This paper will present information on major research studies performed in Africa and analyze how and why this strange behavior occurs in a commonly thought peaceful primate.
Wild chimpanzees Pan troglodytes schweinfurthii are known to kill and eat mammals in various parts of Africa. Moreover, there is new evidence that chimpanzees near the Ugalla River of western Tanzania also consume mammals Riss, To try and explain this ruthless behavior it is necessary to first analyze their social upbringing and unique lifestyle.
The Chimpanzee society is clearly a male dominated aggressive social unit. Males are larger than females, they are more openly aggressive, and they fight more often Holloway, These fights can look extremely fierce and the victim screams loudly.
But it is rare for a fight between community members to last longer than quarter of a minute, and it is even more unusual for such a fight to result in serious injury Goodall, Many fights break out suddenly. Afterwards the loser of the fight, even though clearly fearful of the aggressor, will almost always approach him and adopt a submissive posture Goodall, Another example of chimpanzee aggression is the charging display.
Although females sometimes display this behavior, especially high ranking, confident females, it is typically a male performance Reynolds, During such a display, the chimp charges flat out across the ground, slapping his hands, and stamping his feet.
The chimps hair then begins to bristle and his lips bunch in a ferocious scowl. He may pitch rocks or jump around swinging branches Strier, Essentially what he is doing is making himself look bigger and more dangerous than he actually is, trying to intimidate his opponents.
The rewards of the alpha male are claiming rights to the food, female partners, and he also acquires a position exempt from attack by fellow chimps Goodall, However, the latter discussion has dealt solely with inter-group aggression, fighting within groups of the same community ; outer-group aggression is grotesquely different.
A chimpanzee community has a home range within which its members constantly roam. Usually the home range consists of roughly five to eight square miles. The adult male chimpanzees usually in groups of three, take turns patrolling the boundaries of their area keeping close together, silent and alert Goodall, The African community of Gombe remains the center of the events throughout the book.
Goodall describes it as As they travel they pick up objects sniffing them as if they are trying to find clues to locate strangers.
If a patrol meets up with a group from another community, both sides usually engage in threats, and then are likely to retreat back to their home ground Holloway, But if a single individual is encountered, or a mother and a child, then the patrolling males usually chase and, if they can, attack the stranger Goodall, In the chimpanzees of Gombe divided into two groups:Infanticide is the killing of a non-adult animal by an adult of the same species.
Infanticide is often, but not always, accompanied by cannibalism. (Goodall, ) Although there is not a clear answer why chimps engage in this very violent and sometimes gruesome behavior there are many ideas and suggestions.
This essay will deal with chimpanzee aggression, cannibalism and infanticide. Researchers had been observing a group of chimpanzees in Senegal since They identified one chimp, Foudouko, as the alpha leader. Chimpanzee cannibalism has been documented since the.
Here we report two new cases of infanticide by male chimpanzees at a second Kibale site, Ngogo, where the recently habituated chimpanzee community is the largest yet known. The common chimpanzee Isolated cases of cannibalism have also been documented.
Diet entertainment acts featuring chimpanzees dressed up as humans have been traditional staples of circuses and stage shows. Westerners have also been disturbed by the chimps' resemblance to humans as well as their "frank sexuality".
Primatologist Jane Goodall was the first to observe this infamous female behavior in in a cannibalistic mother-daughter duo, the chimpanzees being named Passion and Pom.