Human-like altruism shown in chimpanzeesJune 26, 2007Debates about altruism are often based on the assumption that it is either unique to humans or else the human version differs from that of other animals in important ways. Thus, only humans are supposed to act on behalf of others, even toward genetically unrelated individuals, without personal gain, at a cost to themselves. Studies investigating such behaviors in nonhuman primates, especially our close relative the chimpanzee, form an important contribution to this debate. This week in PLoS Biology, Felix Warneken and colleagues from the Max Planck Institute for Evolutionary Anthropology present experimental evidence that chimpanzees act altruistically toward genetically unrelated conspecifics. In addition, in two comparative experiments, they found that both chimpanzees and human infants helped altruistically regardless of any expectation of reward, even when some effort was required, and even when the recipient was an unfamiliar individual-all features previously thought to be unique to humans. The evolutionary roots of human altruism may thus go deeper than previously thought, reaching as far back as the last common ancestor of humans and chimpanzees. In a related article, Frans de Waal discusses the issues brought out by this discovery. Public Library of Science |
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| Related Altruism Current Events and Altruism News Articles Can a plant be altruistic? The concept of altruism has long been debated in philosophical circles, and more recently, evolutionary biologists have joined the debate. Chimpanzees help each other on request but not voluntarily The evolution of altruism has long puzzled researchers and has mainly been explained previously from ultimate perspectives-I will help you now because I expect there to be some long-term benefit to me. Self-sacrifice among strangers has more to do with nurture than nature Socially learned behavior and belief are much better candidates than genetics to explain the self-sacrificing behavior we see among strangers in societies, from soldiers to blood donors to those who contribute to food banks. Evidence that Priming Affiliation Increases Helping Behavior in Infants As Young As 18 Months Most of us are willing to help a neighbor in need, but there's no question that we pay a price for our altruism. Not necessarily in money, but in valuable time and energy, and with no promise of payback. So, why do we engage in prosocial behavior in the first place? Pitt team first to profile genes in acutely ill idiopathic pulmonary fibrosis patients The first findings from a one-of-a-kind, patient-driven effort to provide lung tissue for research might help doctors predict when patients with idiopathic pulmonary fibrosis (IPF) are becoming dangerously ill and also could point the way to interventions that could sustain them until life-saving transplants can be performed. Why dishing does you good: U-M study Why does dishing with a girlfriend do wonders for a woman's mood? The neurobiology of musicality related to the intrinsic attachment behavior? In the study of University of Helsinki and Sibelius Academy, Helsinki, the neurobiological basis of music in human evolution and communication was evaluated using candidate genes associated in the earlier studies with social bonding and cognitive functions. The importance of being helpful -- Cooperative cichlids boost their own reproductive success Subordinate individuals living within a group of vertebrates sometimes assist a more dominant pair by helping to raise the dominant pair's offspring and this has been shown to occur among subordinate female cichlids. Study Suggests Collective Religious Rituals, Not Religious Devotion, Spur Support for Suicide Attacks In a new study in Psychological Science, a journal of the Association for Psychological Science, psychologists Jeremy Ginges and Ian Hansen from the New School for Social Research along with psychologist Ara Norenzayan from the University of British Columbia conducted a series of experiments investigating the relationship between religion and support for acts of parochial altruism, including suicide attacks. In sickness and health: Caring for ailing spouse may prolong your life Older people who spent at least 14 hours a week taking care of a disabled spouse lived longer than others. That is the unexpected finding of a University of Michigan study forthcoming in Psychological Science, a journal of the Association for Psychological Science. More Altruism Current Events and Altruism News Articles |
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