Demonic Males reading notes Ch 1 – Paradise Lost 4 modern great ape species: orangutans, gorillas, chimps, bonobos – part of human genetic line Looking for patterns of behavior, clues to human history/behavior Group of 8 chimps in Gombe Nat’l Park – 7 males, 1 female; crossed border zone ‘74 Ambushed 1 chimp (Godi) from neighboring group, mortally wounded 1st time chimp raid observed/recorded by humans Scientists also noticed sexual violence by chimps Females not picky; they only avoid maternal brothers – sometimes raped when they refuse Chimps use stone hammers and anvils to break open nuts, fish for termites with sticks Use other tools, implements, ‘clothing’ Local traditions passed on across generations in local group Bush with bitter pith used to treat upset stomachs Hunter apes kill 4 monkeys Big male doles out meat to friends/allies and female mates Goodall and Kasakela chimps Within larger community, 2 subgroups Tension between nor’n (Kasekela) and sou’n (Kahama) groups Parties would patrol their territory Not just defensive – engaged in raids, sometimes deep into neighboring lands, did so without feeding 7 weeks after Godi, another attack – lone Kahama male the victim, crippled by attack 1-by-1 Kahama males disappeared, ’77 only 1 adolescent male remained, then killed – end ’77 Kahama was no more Attackers and victims had previously been close companions Kasekela expanded into Kahama territory, met strangers from Kalande group – Kalande raids were lethal Elsewhere in Africa there are observed chimp raids from neighboring groups – not a result of artificial provisioning Prior to Goodall, people believed intraspecies killing didn’t exist, contradicted Darwinian selection War seen as uniquely human New evol’nary theory – selfish-gene theory of natural selection aka inclusive fitness theory Ultimate explanation of individual’s behavior considers only passing individual’s genes on Humans and chimps closely related 4.5M yrs ago bipedal human ancestor with head like chimp’s Chimps closer to us than to gorillas Studies provide clear parallels between chimp and human behavior Particularly nature of their society – patrilineal, male-bonded communities Even ‘matrilineal’ villages are subunits of larger patrilineal whole Bonobos evolved from same ancestor as humans and chimps, yet peaceful and unaggressive Ch 2 – Time Machine Apes were one group of species; hominids another Separate for about 10-15M yrs Human fossil record goes back 4.5M yrs ‘Australopithecus afarensis’, “Lucy”, 3-3.8M yrs Woodland apes, similar to chimps, though more adapted to upright walking Gorillas discovered by west’n science 1847 Thomas Huxley used them as comparison with humans Apes are big primates with no tails Problem of evol’nary convergence – similar environments lead different species to become more similar Solved by George Nuttall 1904 through blood tests – anti-bodies to blood from other species Protein tests showed humans more similar to African apes than orangutans ’84 DNA tests by Sibley and Ahlquist Fit genetic strands from different species to see how well they fit Found that humans more similar to chimps than gorillas Found chimps more similar to humans than gorillas Chimps and bonobos most similar, then humans, gorillas, finally orangutans Genetic relationships echo evol’nary history Estimate time of common ancestor by comparing genetic similarity with species with more established fossil record Common ancestor of chimps and humans lived 4.9M yrs ago Humans evolved relatively fast Homo sapiens only 150-230K yrs old; at least 4 other prehumen species Chimps and gorillas look very similar apart from size Common ancestor probably chimp-sized Unique combo of social characteristics: male-bonded communities and male-driven lethal intergroup behavior Behaviors likely have common origin – suggests 5M yrs ago there were killer apes Ch 3 – Roots Bipedal travel considered hallmark of hominids Bipedal motion possible for chimps, but awkward Allows humans to travel twice as far/day as chimps Find food, escape predators Though rainforest apes can venture into woodland for food, they can’t survive there long-term – they need rainforests Colonizing woodlands required new food habit Roots most probable fallback food; nuts and seeds another possibility Kakbas – occasional granite outcrops found in African rainforests; dry, sometimes windy – plants have to store water and nutrients Pygmies go there to find yams – a root – for carbs Baboons eat roots exclusively Digging vegetables from ground common for early hominids Tongo forest – unusually dry, fight for water important Sponging more efficient than dipping hands into pools Chimps here excited to find roots, treat them the way other chimps treat meat Particular type of root, very wet – source of water? 5M yrs ago our ancestors crossed tropical rainforest/woodland divide Perhaps root-carrying lead woodland apes to adopt bipedalism 2M years ago began shaping tools and relying more on meat Brains expanded toward human size 1.8M yrs ago Tamed fire 1.5M yrs ago Human language 150K yrs ago Agr 10K yrs ago Gunpowder 1K yrs ago, motor vehicles 100 yrs ago Still raided/warred with male-bonded communities, like chimps Ch 4 – Raiding Human and chimp intraspecies killing a startling exception to animal norm Yanomamo a good comparison regarding warfare Relatively untouched by modern world Famous for their intense warfare Neighboring villages regarded as hostile or potentially hostile Ordinary life peaceful; well-fed through farming and hunting Avg village 90 members, related by male descent When balloons to about 300, there’s a fight and then a rift; divides along male kinship lines Intervillage warfare not over resource – sometimes accusations of sorcery or trivial argument, often over women Try to solve conflicts with formal fighting games; if these don’t work, they move on to warfare 2 combat styles: luring guests to feast, then killing them when off guard; raiding parties Men who’ve killed undergo purifying ritual—40% of men have undergone such ritual (unokai), 30% of Yanomamo men die violently Unokais have more women on average Approx. 30% of adult male chimps die from aggression in Gombe Common features with ape warfare Appetite for engagement Excited assembly of war party Stealthy raid Discovery of enemy and quick estimation of odds Gang-kill Primitive war relies on surprise Style, frequency, intensity of primitive war different among different peoples Even ‘peaceful’ people occasionally engage in raids Modern life generally less violent than in primitive societies Punishment for crime can lead to blood feuds Waorani aboriginals in Andes Retaliatory raids and blood feuds Balance of terror only broken by intervention by missionaries Ch 5 – Paradise Imagined Notion that human evil is culturally acquired Romantic visions of South Sea paradise – Gauguin, Melville Marquesans in Polynesia Small communities separated by geography and perpetual suspicion and warfare Cannibalism and uninhibited sexuality If Marquesans represented pre-civilized humanity, then is humankind naturally evil? Gauguin’s Tahitian paradise devoid of men Nature v nurture a false dichotomy, Galton’s Error Mead’s Samoan expedition Claimed nurture more important than nature Adolescence easier in Samoa because sex regarded as natural, pleasurable Many observations didn’t match data, especially regarding promiscuity – Samoan obsession with virginity Pre-Christian Samoan wars frequent and bloody Ch 6 – A Question of Temperament Temperament is individual’s emotional reactions to situations in the real world Notion of violent male Wide belief that gender is culturally determined Most extreme example of women warriors the Dahomey elite guard Fighting members of king’s harem Women restricted from participating in war in most societies Using primitive weapons – disadvantaged by physical size/strength 8% of Soviet soldiers in WWII women, though postwar military overwhelmingly male Amer’n men 8x more likely to commit violent crime Feminist debate over the issue of difference Patriarchy theory – gender difference an artifact of historical events, institutionalized inequality Patriarchy exists throughout the world, not just in Judeo-Chr’n West No anthropologist has yet found matriarchal society !Kung people of southern Africa closest to egalitarian society Men still do most of fighting and talking/leading Most fights initiated by men Wife-beating common Much evidence contrary to notion of patriarchy as strictly cultural Patriarchy detectable in chimp societies Not inevitable, but patriarchy emerges out of particular strategies that men (and women) invent for achieving their emotional goals Ch 7 – Relationship Violence Arnhem Zoo chimps Top 3 males (of 4) vied for alpha status When one deposed, other 2 would gang up against 1 Nikkie and Yeroen allied against Luit, mortally wounded him one night ‘full’ humanity achieved 130K yrs ago; art first appeared 35K yrs ago Many primates ferociously defend their territory, usually done by females Aggression different from lethal chimp raids Once opponent gives in, they’re let go Only humans and chimps deliberately seek to kill their victim Orangutan rape Rape is ordinary part of species’ behavior Mostly done by adult male frozen in adolescent’s body Orangutans least social of the apes Only mother-infant pairs stable social units Adolescent females sexually curious, but once they have a baby, they lose interest in sex Females prefer large males: loud, aggressive, male markings Such males entirely intolerant of each other Sex with such males appears consensual Small males the size of adult females, but stay small Not noisy, don’t show signs of fighting, but they rape females Females tried to escape, but pursued, beaten, bitten, screamed One such male raped the cook at a research camp Rape appears to be a fertilization tactic for males who otherwise can’t attract a mate Big males cumbersome, slowed down by size; small males are faster, can keep up with fleeing females Sexual coercion hypothesis Evolved male mechanism for control, for ultimate purpose of fertilization in the future Reminds female of male’s physical and sexual control over her Female’s safest future is to bond with rapist Rapes are 1/3 to ½ of all copulations Females lack social alliances to protect them from rape Chimpanzee battering Safety in numbers When male chimps reach adolescence, they tease adult female with mock aggression As he grows to their size, he acts brutally to each female until he dominates all of them Eventually female meekly approaches him Sexual coercion maybe the underlying reason Male can force female into consortship Female will often leave center of community when cycling, with just her offspring and a single male, travel at edge of community’s range Gombe infants especially likely to be conceived during these consortships Consortships beneficial to male b/c he has no rivals for fatherhood Battering is case of predominantly male on female violence Instances of relationship violence Triggered by number of superficial contexts, underlying issue is domination/control Gorilla infanticide Gorillas for the most part quiet, relaxed, affectionate Stable family troops of silverback and harem of 3-4 females + offspring Females totally subservient to silverback Extra males wander alone or in bachelor troops 1 in 7 infants killed through infanticide (37% of infant deaths) Most dangerous when breeding silverback dies Killer removes competitor’s genes Females may join killer’s troop, have next baby with him Some males kill existing silverback’s child to show their strength superiority over her current mate Adult male apes are potential brutes Social system of particular species helps determine whether aggression pays off Relationship violence works best when animals intelligent enough to know each other’s personalities Ch 8 – The Price of Freedom Spotted hyenas live in female-dominated clans ruling their hunting grounds, fighting with neighbors both in defense and in raids Understanding of animals revolutionized in 60s with growing field observations Intraspecies violence found to be much more prevalent Infanticide typical of many species of many kinds Using infant as food, accelerating mother’s sexual availability In species where infanticide is common, mating patterns reflect need for protection of offspring Killing adults done so usually only when it’s safe for killers – victim outnumbered Balanced power – no sense risking life to kill defeated rival Numbers unbalance power Killing is possible in party-gang species because it’s cheap Chimps and hyenas xenophobic, small parties, fight with neighbors; socially mirror opposites Chimps patriarchal; hyenas matriarchal Dominant sex lives and dies by its territory, subordinate sex can survive by emigrating (chimps) Among hyenas, strange females or males in conquered land driven off or killed – greater food resources for clan Killing weakens neighbors, who are armed and dangerous rivals Human males aggressive because of party-gang traits: coalitionary bonds among males, male dominion over expandable territory, variable party size Male aggressive because they’re the ones defending the territory; hyenas show that human male violence doesn’t stem merely from maleness Cost-of-grouping theory Primate groups might grow infinitely large except for ecological costs Party-gang species cannot afford to live in permanent troops year-round Lifestyles centered on nutritious, but hard to find foods Adult males walk faster, tire less quickly because they don’t carry the infants – pushes toward male-bonded system Ch 9 – Legacies Muriqi monkey is extremely pacifistic species Females can’t be bullied, chose mates at will, mate in view of other males No concern for hierarchy in any way Males’ bodies not designed for fighting, any more so than females Human bodies don’t appear as dangerous when compared to other apes—slender, light bones, no apparent bodily weapons Men slightly larger/more muscular than women, but don’t have fighting canine teeth Apes can fight with fists rather than teeth, and have long arms Fists can grasp invented weapons Selection has favored male upper-body strength While humans reason more than other animals, emotion is also involved in decision-making Chimp aggression looks rational in sense that it’s guided by complex assessment of immediate context Reason generates list of possibilities; emotion choose from that list Pride the emotion that stands out for aggression High-ranking male becomes angry when lower-ranking male refuses to acknowledge him Male chimps organize life around issues of rank Wars tend to be rooted in competition for status Michael Howard: men fight because they discern or believe they discern dangers before they become immediate Groups command extraordinary devotion People quickly form groups, favor those in their own group, ready to be aggressive to outsiders Morality based on intragroup loyalty worked in evol’nary history because it made groups more effectively aggressive Males are demonic at unconscious and irrational levels Ch 10 – The Gentle Ape Bonobos look very similar to chimps, only slightly smaller Bonobo calls sound more like birds; chimps have loud hoots and barks Reduced level of violence in relations between sexes, among males, and between communities Treatment of females No forced copulation, battering, or infanticide Social life similar to chimps—male kin group Sexes are codominant—dominance based on rank, not sex Sons stay with mothers throughout their live—living mothers usually means higher rank Females band together to help out a son; males never cooperate with each other Females develop close relationships with each other, including female-female sex (‘hoka-hoka’) Male bonobos fight less often, lower intensity Not as concerned about who gets to mate—less competitive Sex used for non-reproductive reasons Intercommunity relations Friendliness between 2 groups always initiated by females Intercommunity hoka-hoka Sometimes fighting, but not severe Bonobos don’t hunt monkeys Sometimes catch them, treat them like pets (albeit roughly) Ch 11 – Message from the Southern Forests Bonobos have larger, more stable parties than chimps—more cohesive Difference in diets Party stability produced female power Bonobos indicate that human behavior didn’t have to turn out the way it did; it could have become more peaceful Ch 12 – Taming the Demon Patriotism the male defense of the community Defense of motherland—matriotism—essential among many primates Fighting done by females Done strictly in defense Male coalitionary groups often go beyond defense to include unprovoked aggression Males seek extraordinary power because it leads to extraordinary reproduction Sexual selection has favored male temperaments reveling in high-risk/high-gain ventures Female power isn’t simply a direct or inverted image of male power, but something completely different While men have evolved to become demonic males, women have evolved to prefer demonic males Demonic male tends to best protect female from violence by others Women have been unable to develop effective counter-strategies against their demonic male partners Institutionalized power versus individual power Ch 13 – Kakama’s Doll Intelligent minds are responsible for new forms of aggression irrelevant to animals w/o good memories and long-term social relationships