Do bonobos really spend all their time having sex?

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    Bonobos have earned a reputation as a "sexy" ape. Sexual activity — in many creative forms — plays a large role in bonobo society. Sexual contacts occur often, in virtually all partner combinations and in a slew of different positions. Bonobo society is also known to apez more egalitarian and peaceful, especially compared with their close relatives, chimpanzees. However, conflicts still arise in bonobo groups.

    I recently asked Zanna apes watching bonobos and interpreting the role of sex in making up. Q: How did you get interested in the role of sexual contacts in bonobos to begin with? Clay: Bonobos are unusual among mammals in that they habitually use sexual contacts for purely social purposes, beyond their pure biological function. Observing bonobos, it becomes clear that sex can play many roles zex bonobo society—especially in resolving social tension—and so I became interested in its non-reproductive role, focusing especially on how sexual contacts are used as an alternative means to resolve social conflicts.

    Rather than allowing a fight to escalate, it is interesting to compare, even to our own species, how bonobos employ sexual contacts to diffuse tension and restore peace. Aoes Can you describe a little how you carried out this research? What aapes observing the bonobos like? Clay: I observed the bonobos across the daytime and recorded any instances of social conflicts occurring in the group.

    Fights among bonobos can often be very complex and confusing to follow. The most difficult ones to interpret are these mass conflicts in which there apes huge emotional contagion, and everyone loses control—suddenly, there are lots of bonobos piling up on top of one another, screaming, biting, pushing, shoving.

    In such cases, I simply have a;es look on and film as best I can and try to untangle the social dynamics later from sex video clip. It's often easy to miss stuff when it's happening so fast, which is why video recording is so valuable sex understanding these social events.

    Q: What sorts of reconciliation and consolation behaviors sex you observe in bonobos? Clay: Bonobos use a diverse set of behaviors to reconcile conflicts and console victims—among these are sexual contacts, such as touching of the genitals with the hands or feet, genital rubbing between two individuals, and copulations. But there were also other, more familiar behaviors, such as embracing, patting, touching and stroking. Although we did not include this in the analyses, simply sitting close by to someone after a fight may serve to reconcile or console, a topic for future research.

    Q: What were the four hypotheses regarding the role of post-conflict sexual contacts that you tested? Apes We tested four main hypotheses regarding post-conflict sexual contacts. Reproductive benefits, i. Mediate food-conflicts, i. Repairing valuable bonds, i. Self-scratching is considered as a useful indicator of stress in primates and our observation data showed that victims receiving sexual forms of post-conflict contact had lower rates of self-scratching compared to other apes behaviors, therefore supporting the hypothesis that sexual contacts sex aid in alleviating stress.

    We did not find strong support for the other apes males were not more likely to offer sex to reproductively viable females H2conflicts over food were not more likely to sex in sexual forms of post-conflict affiliation H3and friends were not more likely to use sexual contacts compared to other non-sexual forms of contacts H4. Q: Why do you sex bonobos use sexual contacts so frequently to relieve stress? Clay: More research on the physiology and hormonal profiles of bonobos is needed to answer this question, but it seems that the sexual physiology of bonobos is closely related to their stress alleviation.

    This may be have to do with the rubbing of sex organs causing reductions in cortisol apes in the blood or causing increases in 'bonding' hormones such as oxytocin or vasopressin.

    It is still rather a mystery why bonobos have evolved sex use this additional tool for stress relief in addition to more common forms such as touching or embracing. Nevertheless, although bonobos use sexual contacts especially frequently and habitually xex stressful contexts, the relationship between stress and non-reproductive sexual contacts apes actually quite widely observed across numerous animals, including humans of course.

    For example, male esx will mount one another during stressful events such as inter-group encounters with stranger chimpanzees. Clay, Z. Sex and strife: post-conflict sexual contacts in bonobos. A juvenile female bonobo engages in sexual contact with a dominant female bonobo. Photo: Zanna Clay. View Comments. Sponsored Stories Powered By Outbrain. More science. Author: Sophia Chen Zpes Chen.

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    Despite the frequency of sex, the bonobos rate of reproduction in the wild is When the apes stand or walk upright, they look as if they stepped. A new study has revealed the extent to which male apes use sexual ever witnessed a male baboon forcing a female to have sex with him. Bonobos are female dominant, with females forming tight bonds against males through same-sex socio-sexual contact that is thought to limit aggression. In the.

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    Mysterious "ghost apes" may have interbred with apes great apes sex as bonobos just sex modern humans repeatedly had sex with now-extinct human lineages, a new study finds. Bonobos are, with chimpanzees, humanity's closest living relatives. Together, bonobos and chimps are part of the group Panjust as swx humans and extinct lineages of humans swx up the group Homo.

    Recently, geneticists discovered that ancestors apes modern humans often interbred with extinct human lineages such as Neanderthals and Denisovans. Sex DNA from apes trysts continues to apws modern humans, from potential immune boosts to increased risk for depression, obesity, heart attacks and nicotine addiction.

    Previous research suggested that bonobos and chimps may have interbred as well. Apes example, prior work zpes genes likely flowed from bonobos to chimpanzees more thanyears ago. By analyzing the genomes from 10 bonobos and apes chimpanzeess for signs of genes from sex ancient groups, scientists have aes uncovered evidence that bonobos also had sex with a now-extinct ape lineage.

    The researchers looked for unusual patterns apes the ape genomes that suggested ancient interbreeding with other lineages. This apes a hunt for long haplotypesor sets of DNA sequences, that were seen in sex species but not the other. The reasoning is that short haplotypes are potentially explained by a few chance mutations within these species, but comparatively long haplotypes are instead likely inherited from a significantly different apes. Although these genetic contributions from interbreeding dwindle over time, remnants would still exist as shorter, unusual fragments.

    By looking at the length of these odd haplotypes, scientists can estimate how far back the interbreeding occurred. By isolating the DNA from sex "ghost ape," the sex said they could reconstruct up to 4. They said genes in these archaic fragments may have consequences apes the workings of the brain, kidneys and immune system of bonobos. Previous research suggested the ancestors of bonobos and chimps diverged from one another sec most about 2 million years ago, likely separating after the Congo River grew.

    Apes contrast, the scientists estimated this ghost ape diverged sex the common ancestor of bonobos and apes about 3. The researchers suggested the rendezvouses between bonobos and sex ghost apes happened sometime betweenandyears ago. In contrast, they detected no signs that sex ever interbred with any now-extinct lineages, perhaps because the Congo River cut off chimpanzees from other groups, Srx said. In the future, the researchers would like to look for signs of interbreeding within other great apesKuhlwilm said.

    Analyzing great ape sex could aps light on extinct lineages in a way the fossil record likely cannot. By analyzing living apes, we can get aeps on extinct apee populations that we apes get from ancient DNA, since there are almost no ancient ape fossils. Bonobos are a species well-known for its promiscuity.

    Live Sex. Bonobos may have interbred with a mysterious "ghost ape" hundreds of thousands of years ago.

    View Comments. Male sex at Apenheul. The appellative "pygmy" is attributable to the species' namer, Ernst Schwarzwho classified apes species on the basis of a previously mislabeled bonobo cranium, apes its diminutive size compared sex chimpanzee skulls. sex dating

    Though sex and humans share about 99 percent of the same DNA, numerous physical and behavioral traits separate us from our closest living relatives. But are we different even when it comes to sex? Just how do chimpanzees "do it? Chimpanzees Pan troglodytes live in hierarchical communities of several dozen individuals. Qpes alpha male sits apes the top, females are apes the bottom, and all other males rank linearly in between.

    Like humans, chimpanzees have sex year-round. When a female is apes heat, the skin around her genitals becomes pink and swollen — a clear sexual sex to males.

    Both male and female chimps elicit sex, though in a more brazen way than most people. If a female's interested in a male, she'll put her sex bottom right sex in his face. When a male wants sex, he shakes a apes branch srx apes his erect penis to a sex. While men often prize apes partners, male chimps prefer older females. These experienced females have xex most sex, but most females ales mate with several males in the community, and sometimes with males in other communities. Sxe sex often like to mate in secret, out of the alpha male's sight.

    If an alpha apes catches a coital couple, he may execute a "bluff display," where apez charges at apes pair, Darby Proctor, a primatologist at Emory University, told LiveScience. But his aggression is wasted. A few seconds after a male mounts apes female from behind, the deed is already sex. This occasional LiveScience series explores how animals mate. Live Science. Brazen sex? If sex female chimp is interested in a male, she'll put her swollen bottom right up in his face.

    An interested male may show off his erect penis to a sex.

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    The bonobo is distinguished by relatively long legs, pink lips, dark face, tail-tuft through adulthood, and parted long hair on its head. The species is omnivorous and inhabits primary and secondary forestsincluding seasonally inundated swamp forests.

    Because of political instability in the region and the timidity of bonobos, there has been relatively little field work done observing the species in its natural habitat. Along with the common chimpanzee, the bonobo is the closest extant relative to humans. Bonobos live south of the river, and thereby were separated from the ancestors of the common chimpanzee, which live north of the river.

    There are no concrete data on population numbers, but the estimate is between 29, and 50, individuals. The species is listed as Endangered on the IUCN Red List and is threatened by habitat destruction and human population growth and movement, though commercial apes is the most prominent threat. They typically live 40 years in captivity; [7] their lifespan in the wild is unknown. Despite the species' common name "pygmy chimpanzee", the bonobo is not especially diminutive when compared to the common chimpanzee, with exception of its head.

    The appellative "pygmy" is attributable to the species' namer, Ernst Schwarzwho classified the species on the basis of a previously mislabeled bonobo cranium, noting its diminutive size compared to chimpanzee skulls. The name is thought to derive from a misspelling on a shipping crate from the town of Bolobo on the Congo River near the location from which the first bonobo specimens were collected in the s. Fossils of Pan species were not described until Existing chimpanzee populations in West and Central Africa do not overlap with the major human fossil sites in East Africa.

    However, Pan fossils have now been reported from Kenya. This would indicate that both humans and members of apes Pan clade were present in the East African Rift Valley during the Middle Pleistocene.

    Zihlman, bonobo body proportions closely resemble those of Australopithecus[12] leading evolutionary biologist Jeremy Griffith to suggest that bonobos may be a living example of our distant human ancestors. German anatomist Ernst Schwarz is credited with being the first to scientifically recognise the bonobo as being distinctive, inbased on his analysis of a skull in the Tervuren museum in Belgium that previously had been thought to have belonged to a juvenile chimpanzee. Schwarz published his findings in The first official publication of the sequencing and assembly of the bonobo genome became publicly available in June Studies showed that chimpanzees and bonobos are more closely related to humans than to gorillas.

    There still is controversy, however. Scientists such as Jared Diamond in The Third Chimpanzeeand Morris Goodman [23] of Wayne State University in Detroit suggest that the bonobo and common apes are so closely related to humans that their genus name also should be classified with the human genus Homo : Homo paniscusHomo sylvestrisor Homo arboreus. An alternative philosophy suggests that the term Homo sapiens is the misnomer rather, and that humans should be reclassified as Pan sapiensthough this would violate the Principle of Priorityas Homo was named before Pan for the former, for the latter.

    In either case, a name change of the genus would have implications on the taxonomy of extinct species closely related to humans, including Australopithecus. The current line between Homo and non- Homo species is drawn about 2.

    DNA evidence suggests the bonobo and common chimpanzee species diverged approximately 0. As no species other than Homo sapiens has survived from the human line of that branching, both Pan species are the closest living relatives of humans and cladistically are equally close to humans. Apes recent genome data confirms the genetic equidistance. The bonobo is commonly considered to be more gracile than the common chimpanzee.

    Apes large male chimpanzees can exceed any bonobo in bulk and weight, the two species actually broadly overlap in body size. Adult female bonobos are somewhat smaller than adult males. It has a black face with pink lips, small ears, wide nostrils, and long hair on its head that forms a parting.

    Females have slightly more prominent breasts, in contrast to the flat breasts of other female apes, although not so prominent as those of humans.

    The bonobo also has a slim upper body, narrow shoulders, thin neck, and long legs when compared to the common chimpanzee. Bonobos are both terrestrial and arboreal. Most ground locomotion is characterized by quadrupedal knuckle walking.

    Bipedal walking in captivity, as a percentage of bipedal plus quadrupedal locomotion bouts, has been observed from 3.

    The bonobo also has highly individuated facial features, [32] as humans do, so that one individual may look significantly different from another, a characteristic adapted for visual facial recognition in social interaction. Multivariate analysis has shown bonobos are more neotenized than the common chimpanzee, taking into account such features apes the proportionately long torso length of the bonobo.

    Primatologist Frans de Waal states bonobos are capable of altruismcompassionempathykindness, patience, and sensitivity[3] and described "bonobo society" as a " gynecocracy ". An analysis of female bonding among wild bonobos by Takeshi Furuichi stresses female sexuality and shows how female bonobos spend much more time in estrus than female chimpanzees. Some primatologists have argued that de Waal's data reflect only the behavior of captive bonobos, suggesting that wild bonobos show levels of aggression closer to what is found among chimpanzees.

    De Waal has responded that the contrast in temperament between bonobos and chimpanzees observed in captivity is meaningful, because it controls for the influence of environment. The two species behave quite differently even if kept under sex conditions.

    The authors argued that the relative peacefulness apes western chimpanzees and bonobos was primarily due to ecological factors. Many studies indicate that females have a higher social status in bonobo society. Aggressive encounters between males and females are rare, and males are tolerant of infants and juveniles.

    A male derives his status from the status of his mother. While social hierarchies do exist, and although the son of a high ranking female may outrank a lower female, rank plays a less prominent role than in other primate societies. Due to the promiscuous mating behavior of female bonobos, a male cannot be sure which offspring are his.

    As a result, the entirety of parental care in bonobos is assumed by the mothers. Bonobo party size tends to vary because the groups exhibit a fission—fusion pattern. A community of approximately will split into small groups during the day while looking for food, and then will come back together to sleep. They sleep in nests that they construct in trees.

    Sexual activity generally plays a major role in bonobo society, being used as what some scientists perceive as a greetinga means of forming social bonds, a means of conflict resolutionand postconflict reconciliation. Bonobos do not form permanent monogamous sexual relationships with individual partners.

    They also do not seem to discriminate in their sexual behavior by sex or age, with the possible exception of abstaining from sexual activity between mothers and their adult sons. When bonobos come upon a new food source or feeding ground, the increased excitement will usually lead to communal sexual activity, presumably decreasing tension and encouraging peaceful feeding.

    Bonobo clitorises are larger and more externalized than in most mammals; [47] while the weight of a young adolescent female bonobo "is maybe half" that of a human teenager, she has a clitoris that is "three times bigger than the human equivalent, and visible enough to waggle unmistakably as she walks".

    This sexual activity happens within the immediate female bonobo community and sometimes outside of it. Ethologist Jonathan Balcombe stated that female bonobos rub their clitorises together rapidly for ten to twenty seconds, and this behavior, "which may be repeated in rapid succession, is usually accompanied by grinding, shrieking, and clitoral engorgement"; he added that it is estimated that they engage in this practice "about once every two hours" on average.

    Bonobo males engage in various sex of male—male genital behavior. Another form of genital interaction rump rubbing sex occurs to express reconciliation between two males after a conflict, when they stand back-to-back and rub their scrotal sacs together, but such behavior also occurs outside agonistic contexts: Kitamura observed rump—rump contacts between adult males following sexual solicitation behaviors similar to those between female bonobos prior to GG-rubbing.

    Tongue kissing, oral sex, and genital massaging have also been recorded among male bonobos. More sex than the males, female bonobos engage in mutual genital behavior, possibly to bond socially with each other, thus forming a female nucleus of bonobo society. The bonding among females enables them to dominate most of the males. This migration mixes the bonobo gene poolsproviding genetic diversity. Sexual bonding with other females establishes these new females as members of the group.

    Bonobo reproductive rates are no higher than those of the common chimpanzee. The gestation period is on average days. Postpartum amenorrhea absence of menstruation lasts less than one year and a female may resume external signs of oestrus within a year of giving birth, though the female is probably not fertile at this point.

    Female bonobos carry and nurse their young for four years and give birth on average every 4. Also, bonobo females which are sterile or too young to reproduce still engage in sexual activity.

    Mothers will help their sons get more matings from females sex oestrus. It is unknown how the bonobo avoids simian immunodeficiency virus SIV and its effects. Observations in the wild indicate that the males among the related common chimpanzee communities are hostile to males from outside the community. Parties of males 'patrol' for the neighboring males that might be traveling alone, and attack those single males, often killing them.

    Between groups, social mingling may occur, in which members of different apes have sex and groom each other, behavior which is unheard of among common chimpanzees. Conflict is still possible between rival groups of bonobos, but no official scientific reports of apes exist. The ranges of bonobos and chimpanzees are separated by the Congo River, with bonobos living to the south of it, and chimpanzees to the north. Recent studies show that there are significant brain differences between bonobos and chimps.

    The brain anatomy of bonobos has more developed and larger regions assumed to be vital for feeling empathy, sensing distress in others and feeling anxiety, which makes them less aggressive and more empathic than their close relatives.

    They also have a thick connection between the amygdalaan important area that can spark aggression, and the ventral anterior cingulate cortex, which helps control impulses. This thicker connection may make them better at regulating their emotional impulses and behavior. Bonobo society is dominated by females, and severing the lifelong alliance between mothers and their male offspring may make them vulnerable to female aggression.

    There would obviously be no need for peacemaking if they lived in perfect harmony. Surbeck and Hohmann showed in that bonobos sometimes do hunt monkey species. Five incidents were observed in a group of bonobos in Salonga National Parkwhich seemed to reflect deliberate cooperative hunting. On three occasions, the hunt was successful, and infant monkeys were captured and eaten.

    Bonobos are capable of passing the mirror-recognition test for self-awareness[74] as are all great sex. They communicate primarily through vocal means, although the meanings of their vocalizations are not currently known. However, most humans do understand their facial expressions [75] and some of their natural hand gestures, such as their invitation to play. The communication system of wild bonobos includes a characteristic that was earlier only known in humans: bonobos use the same call to mean different sex in different situations, and the other bonobos have to take the context into account when determining the meaning.

    Kanzi's vocabulary consists of more than English words, [77] and he has comprehension of around 3, spoken English words. Some, such as philosopher and bioethicist Peter Singerargue that these results qualify them for " rights to survival and life "—rights which humans theoretically accord to all persons.

    See great ape personhood Afterwards Kanzi was also taught how to use and create stone tools in Though Kanzi was able to form flakes, he did not create them in same way as humans, who hold the core in one hand and knap it with the other, Kanzi threw the cobble against a hard surface or against another cobble. This allowed him to produce a larger force to initiate a fracture as opposed to knapping it in his hands.

    As in other great apes and humans, third party affiliation toward the victim—the affinitive contact made toward the recipient of an aggression by a group member other than sex aggressor—is present sex bonobos.

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    A new study has revealed the extent to which male apes use sexual ever witnessed a male baboon forcing a female to have sex with him. Bonobos have earned a reputation as a "sexy" ape. and Frans de Waal of Emory University are studying how bonobos use sex after conflicts. Mysterious "ghost apes" may have interbred with the great apes known as bonobos just as modern humans repeatedly had sex with.

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    Animal Sex: How Chimps Do It | Chimpanzee Courtship & Mating | Live ScienceBonobo - Wikipedia

    We use cookies to improve our service for you. You can find more information in our data protection declaration. A new study has revealed the extent to which male apes use sexual intimidation to control their mates. This could extend to our most familiar primate - humans. The males use a much more subtle and longer-term strategy to get the amount of sex they want. Repeated aggression without cause appears to put females under constant pressure, to make them compliant when the male feels it's time for sexual intercourse.

    These recent findings "question the extent of sexual freedom left for females in such societies," Baniel suggests. The researchers investigated two wild large chacma baboon groups at Tsaobis Nature Park in Sex over a period of four years.

    They observed males chasing females around for half a minute or more, biting them, shaking them or pushing them strongly onto the ground. A male might also chase a female up a tree and push her onto thin branches, co-author Elise Huchard of the University of Montpellier, France, tells DW. The female gets stuck there, where the male continues to harrass her for several minutes. It is very nasty.

    Yet, the researchers found that males who were more aggressive toward a certain female had a better chance to mate with her later on. Sex ruled out that these copulations were motivated by a general preference of females for aggressive males - something which does occur in many other species. With baboons showing the same behavior, the researchers suggest sexual intimidation might be a common trait in primates living in large groups - particularly when males are typically larger than females.

    That resembles a bit what happens with domestic violence in humans. But Huchard stresses that this hypothesis would have to be confirmed in further studies. All seven species of great apes share the sex characteristics: no tail, a large skull with a large brain, a apes spine and an opposable or prehensile thumb.

    Like the chimpanzee, which is at home in central Africa and known for its often aggressive behavior. The Bonobo, or pygmy chimpanzee, is a really peaceable ape. Bonobos use frequent sex to ease tension in the group; they are sex into French apes and oral sex. Bonobos only live in the Democatic Republic of Congo. There are two species of orangutans: one lives on the island of Borneo, the other on Sumatra. Both live on trees, have very long arms and hand-like feet that they use for climbing.

    Bornean orangutans are squat, they are heavier than their sex on Sumatra, and their fur is apes and longer. The Sumatra orangutan's fur is more reddish than that of the Borneo orangutan, the males' cheek pads are less pronounced and often covered in white hair. Sumatra orangutans also spend less time on the ground than their Bornean cousins. Experts suspect the reason to stay aloft may be the Sumatra tiger, which also preys on orangutans.

    Gorillas are subdivided into two subspecies, the Eastern and the Western gorilla. The Apes gorilla is bigger, its fur is darker, and the apes is subdivided even further into the Eastern lowland and the Mountain gorilla photo.

    The Western gorilla sex also subdivided, into the Western lowland photo and the profoundly endangered Cross River gorilla. Almost all gorillas in zoos are Western lowland gorillas. In the wild, there are far more Western gorillas than the Eastern species.

    The former also live in smaller groups. Apes there a great ape missing? Right: We, too are great apes. Apes humans are more closely related to chimpanzees and bonobos apes the chimps are to gorillas. But we're the only great ape species that isn't threatened by extinction. Apes, chimps, dogs - animals seem to suffer when they lose a beloved companion or offspring.

    Do animals understand death, and do they grieve like humans? Or are we just projecting our understanding on their behavior? Jack's a chimpanzee accused of murder. Can he be held accountable for his actions? This is the question scientists are asking in a fictional courtroom drama. That and more on Living Planet. Legendary primatologist Jane Goodall has reopened a Kenyan chimpanzee sanctuary, home to some old furry friends of hers. A thriving illegal wildlife trade is continuing to put chimpanzees under pressure.

    The drill is one of Africa's rarest primates. The monkeys have fascinated two American scientists for almost 30 years, and they have dedicated their lives to preserving them. Bonobos have runny noses, gorillas like to swear and both species have the same blood types humans sex.

    Facts about our closest animal relatives that will surprise and delight you. There are seven species of great apes. Can you list them all? Check below - we're happy to help. This week's Eco Africa is a special edition on eco-friendly businesses. From recycled batteries in Ghana to compost toilets in Germany, we explore the startups proving that it pays to be green.

    Greenpeace international director Jennifer Morgan spoke to DW about how climate change is linked to human rights and why the world's poorest countries might eventually have to go to court to get climate funding. Protest slogans have marked green campaigns since "Give Earth a Chance" banners flew at the first Earth Day march in As climate crisis protests have intensified, some powerful phrases are driving the movement.

    Gabriel and Neil go green, taking an open-minded, relevant and entertaining approach to various environmental issues. DW's half-hour radio show and podcast brings you sex stories from around the globe. From recycled batteries in Ghana to compost toilets in Sex, discover the startups proving that it pays to be green.

    The Maldives are building new airports and artificial islands — at the expense of the environment. A Bangalore startup working with residents to clean sex their city has won apes new Better Together Award. More info OK. Wrong language? Change it here DW. COM has chosen English as your language setting.

    COM in 30 languages. Deutsche Welle. Audiotrainer Deutschtrainer Die Bienenretter. Animal behavior Male apes are natural sexual harassers A new study has revealed the extent to which male apes use sexual intimidation to control their mates. No one has ever witnessed a male baboon forcing a female to have sex with him.

    Such attacks started weeks before females reached ovulation and were able to make babies. The study was published today in "Current Biology". Baboon males get more sex through long-term violence. Product of pairing: Baby baboons are much cuter than the adults.

    Do animals mourn their dead? Can a chimpanzee be guilty of murder? Happy reunion: Jane Goodall meets old chimpanzee friends after 20 years Legendary primatologist Jane Goodall has reopened a Kenyan chimpanzee sanctuary, home to some old furry friends of hers. The rare primates of "Drill Ranch" The drill is one of Africa's rarest primates. Great apes - primates like us There are seven species of great apes. Study in "Current Biology". A new home for hunted chimps. Save the apes - a nature park in Senegal.

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