Max Planck Institute for Evolutionary Anthropology
Deutscher Platz 6
phone: +49 (341) 3550 - 0
fax: +49 (341) 3550 - 119
Contact: Sandra Jacob (e-mail: info@[>>> Please remove the brackets! <<<]eva.mpg.de, phone: +49 (0) 341-3550 122)
Genetic study shows that dominant males never sire the offspring of their daughters
Some mountain gorilla females linger into adulthood in the group into which they were born. In the process they also remain in the company of their father, who is often their group’s dominant male. To curb inbreeding, though, they appear to tactically avoid mating with their fathers. This strategy works so well that the chances of alpha gorilla males siring the offspring of their own daughters are effectively zero, according to Linda Vigilant of the Max Planck Institute for Anthropology in Germany. The findings are published in Springer’s journal Behavioral Ecology and Sociobiology.
Members of our species Homo sapiens belonging to the Protoaurignacian culture may have been the ultimate cause for the demise of Neandertals, according to new research
Researchers from the University of Bologna, Italy, and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, analysed two deciduous teeth from the prehistoric sites of Grotta di Fumane and Riparo Bombrini in Northern Italy. The state-of-the-art methods adopted in this study attribute the teeth to anatomically modern humans. New AMS radiocarbon dates on bones and charcoal from the site of Riparo Bombrini, along with previously published dates for the Grotta di Fumane sequence, show that these teeth represent the oldest modern human remains in an Aurignacian-related archeological context, overlapping in time with the last Neandertals. The results have strong implications for our understanding of the interaction between modern humans and Neandertals, as well as for the debate on the extinction of the latter.
A multi-level conservation project, which aims to protect the largest remaining population of wild chimpanzees on the Foutah Djallon-Bafing River (FDBR) region in Guinea, West Africa has won this year’s St Andrews Prize for the Environment. At a ceremony at the University of St Andrews today, Christophe Boesch from the Wild Chimpanzee Foundation (WCF), and director at the Max Planck Institute for Evolutionary Anthropology, was presented with the winning prize of $100,000 USD.
Volunteers will screen video footage filmed by camera traps and identify wild African animal
With Chimp&See, scientists at the Max Planck Institute for Evolutionary Anthropology (MPI-EVA), the German Centre for Integrative Biodiversity Research (iDiv) and the Pan African Programme: The Cultured Chimpanzee are embarking on a new citizen science project hosted by the online platform Zooniverse. Anyone wishing to help biologists evaluate video sequences taken from camera traps in Africa can find general information and watch short clips at http://www.chimpandsee.org; with a little luck, they will spot chimpanzees and other wild animals. In celebration of Earth Day on April 22nd, this special citizen science project will be launched online.
Analyses of old dental calculus show that humans consumed plant foods and mushrooms as early as the Upper Palaeolithic
The human diet during the Magdalenian phase of Europe’s Upper Palaeolithic between 18,000 and 12,000 years ago is poorly known. This is particularly a problem regarding food resources that leave little trace such as plant foods. An international research team, led by Robert Power of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, has now explored diet in the period through dental calculus analysis on Magdalenian individuals found at El Mirón Cave in Cantabria, Spain. The researchers found that already Upper Palaeolithic individuals used a variety of plant foods and mushrooms, in addition to other food sources.
During mate competition Bonobo males suffer from psychological stress
Competition for females is energetically costly for males in many animal species. This reflects in an increase of male stress levels in the presence of fertile females, which can be quantified by measuring cortisol level in the urine. In a new study on bonobos, one of our closest living relatives, researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, find a slightly different pattern: Increased stress levels in the presence of attractive females do not have physiological causes.
Bone collagen sequences prove that South American native ungulates are closely related to horses, rhinos and tapirs but not to elephants
The South American native ungulates Toxodon and Macrauchenia were first found by Darwin 180 years ago in Uruguay and Argentina, yet their place in the phylogenetic tree of the mammals has long been an issue of debate. An international team of scientists from the University of York and the Natural History Museum in London, UK, the American Museum of Natural History in New York, USA, and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, has now provided the key to solving the evolutionary puzzle surrounding what Charles Darwin called the ‘strangest animals ever discovered’. Their remarkable technical feat in obtaining a molecular phylogeny based on Pleistocene protein sequences is a first, which could herald a new chapter in palaeontology.
Researchers develop a novel passive acoustic monitoring (PAM) method for the automated detection of chimpanzees and two monkey species
Traditionally, censusing of wild primates has been conducted using transect methodology where teams of human surveyors walk kilometers of line transects to collect data on primate sightings and vocalizations. Motivated by the increasing availability of cost-efficient audio-visual technologies, researchers at the Max Planck Institute for Evolutionary Anthropology in Leipzig, and the Fraunhofer Institute for Digital Media Technology (IDMT) in Ilmenau, investigated to what extent autonomous recording devices, combined with an automated data processing approach, could be used to monitor wild forest primates. To achieve this goal they used an interdisciplinary team of sound engineers, biomonitoring specialists, statisticians, and primate vocalization experts.
Digital makeover of iconic human fossil sheds light on human origins
State-of-the-art computer reconstruction of the original fossil of Homo habilis, or Handy man, shows this poorly understood human ancestor in a new and unexpected light. Published in the prestigious scientific journal Nature on March 5th, the findings uncover what makes Homo habilis truly distinctive, and indicate that its evolutionary roots go further back in time than previously thought. The research was done by a team led by Fred Spoor from the Max Planck Institute for Evolutionary Anthropology in Leipzig and University College London (UCL), in collaboration with the National Museums of Tanzania. The work was supported by the Max Planck Society.
Pre-Homo human ancestral species, such as Australopithecus africanus, used human-like hand postures much earlier than was previously thought
Some of the morphological characteristics of the human hand are different from that of other primates enabling us to grab objects with precision and use them exerting a force. Yet, how did our early human ancestors use their hands? This question was long debated among scientists. Anthropologists from the University of Kent, working with researchers from University College London, the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany and the Vienna University of Technology in Austria, have produced the first research findings to support archaeological evidence for stone tool use among fossil australopiths three to two million years ago and found that Australopithecus africanus used their hands the way modern humans do.
Languages with a wide range of tone pitches have primarily developed in regions with high levels of humidity
The weather impacts not only upon our mood but also our voice. An international research team including scientists from the Max Planck Institutes for Psycholinguistics, Evolutionary Anthropology and Mathematics in the Sciences has analysed the influence of humidity on the evolution of languages. Their study has revealed that languages with a wide range of tone pitches are more prevalent in regions with high humidity levels. In contrast, languages with simpler tone pitches are mainly found in drier regions. This is explained by the fact that the vocal folds require a humid environment to produce the right tone.
Chimpanzees modify their food calls with respect to tree size for a high valued fruit species.
The vocalization capabilities of our closest living relatives, the great apes, often pale in comparison to their flexible gestural repertoire. However, the vast majority of literature on great ape communication, gestural and vocal, comes from studies conducted in captivity where the surrounding environment is vastly different from the socio-ecological context in which wild apes naturally communicate. Researchers of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, have now investigated a specific call type, the chimpanzee food call, which has already been shown to be produced solely during a foraging context, and a study in captivity has also provided evidence for the call being functionally referential to conspecifics.
Wild chimpanzees select nut-cracking tools taking account of up to five different factors
Are chimpanzees sensitive to the effect of an object’s properties on nut-cracking efficiency and plan their tool selection accordingly? An international team of researchers of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, has now investigated the selection of hammers used for cracking Coula edulis nuts by wild chimpanzees in the Taï National Park, Côte d'Ivoire, taking into account the availability of potential tools at the site and time at which each tool selection episode occurred. The researchers found that wild chimpanzees select the optimal tool for the task at hand by considering several variables and conditions at once, including the weight, the material and the hardness of the hammer, the location of the anvil and whether they needed to transport it over a distance.