//www.koonmotors.com/news/fossils_ruins/human_evolution/ 在人类进化的结果。阅读科学文章on early humans, human and primate genetics and more. Articles and photos. en-us Fri, 08 Sep 2023 12:25:42 EDT Fri, 08 Sep 2023 12:25:42 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/fossils_ruins/human_evolution/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/09/230905202500.htm Researchers report that the flexible shoulders and elbows that allow us to throw a football or reach a high shelf may have evolved as a natural braking system that let our primate ancestors get out of trees without dying. The researchers used sports-analysis software to compare the climbing movements of chimpanzees and small monkeys called mangabeys. While the animals climb up trees similarly, the researchers found that the shallow, rounded shoulder joints and shortened elbow bones that chimps have -- similar to humans -- allow them to fully extend their arms above their heads when climbing down, holding onto branches like a person going down a ladder to support their greater weight. When early humans left forests for the grassy savanna, these versatile appendages would have been essential for gathering food and using tools for hunting and defense. The findings are among the first to identify the significance of 'downclimbing' in the evolution of apes and early humans. Tue, 05 Sep 2023 20:25:00 EDT //www.koonmotors.com/releases/2023/09/230905202500.htm //www.koonmotors.com/releases/2023/08/230814122355.htm Recent paleogenomic research revealed that interbreeding was common among early human species. However, little was known about when, where, and how often this hominin interbreeding took place. Using paleoanthropological evidence, genetic data, and supercomputer simulations of past climate, a team of international researchers has found that interglacial climates and corresponding shifts in vegetation created common habitats for Neanderthals and Denisovans, increasing their chances for interbreeding and gene flow in parts of Europe and central Asia. Mon, 14 Aug 2023 12:23:55 EDT //www.koonmotors.com/releases/2023/08/230814122355.htm //www.koonmotors.com/releases/2023/08/230810141046.htm A new study finds that past changes in atmospheric CO2 and corresponding shifts in climate and vegetation played a key role in determining when and where early human species interbred. Thu, 10 Aug 2023 14:10:46 EDT //www.koonmotors.com/releases/2023/08/230810141046.htm //www.koonmotors.com/releases/2023/08/230810141044.htm A new study finds that around 1.12 million years ago a massive cooling event in the North Atlantic and corresponding shifts in climate, vegetation and food resources disrupted early human occupation of Europe. Thu, 10 Aug 2023 14:10:44 EDT //www.koonmotors.com/releases/2023/08/230810141044.htm //www.koonmotors.com/releases/2023/06/230626163847.htm Researchers have identified the oldest decisive evidence of humans' close evolutionary relatives butchering and likely eating one another. Mon, 26 Jun 2023 16:38:47 EDT //www.koonmotors.com/releases/2023/06/230626163847.htm //www.koonmotors.com/releases/2023/06/230621164756.htm Fifteen years of archaeological work in the Tam Pa Ling cave in northeastern Laos has yielded a reliable chronology of early human occupation of the site. The team's excavations through the layers of sediments and bones that gradually washed into the cave and were left untouched for tens of thousands of years reveals that humans lived in the area for at least 70,000 years -- and likely even longer. Wed, 21 Jun 2023 16:47:56 EDT //www.koonmotors.com/releases/2023/06/230621164756.htm //www.koonmotors.com/releases/2023/06/230620113811.htm Research sheds light on human evolution, and demonstrates an approach for identifying significant differences in how genes are used between closely-related species. Tue, 20 Jun 2023 11:38:11 EDT //www.koonmotors.com/releases/2023/06/230620113811.htm //www.koonmotors.com/releases/2023/06/230614220724.htm Digital modelling of legendary fossil's soft tissue suggests Australopithecus afarensis had powerful leg and pelvic muscles suited to tree dwelling, but knee muscles that allowed fully erect walking. Wed, 14 Jun 2023 22:07:24 EDT //www.koonmotors.com/releases/2023/06/230614220724.htm //www.koonmotors.com/releases/2023/06/230608195656.htm Recent scientific discoveries have shown that Neanderthal genes comprise some 1 to 4% of the genome of present-day humans whose ancestors migrated out of Africa, but the question remained open on how much those genes are still actively influencing human traits -- until now. Thu, 08 Jun 2023 19:56:56 EDT //www.koonmotors.com/releases/2023/06/230608195656.htm //www.koonmotors.com/releases/2023/06/230607215834.htm Curly hair does more than simply look good -- it may explain how early humans stayed cool while conserving water, according to researchers who studied the role human hair textures play in regulating body temperature. The findings can shed light on an evolutionary adaptation that enabled the human brain to grow to modern-day sizes. Wed, 07 Jun 2023 21:58:34 EDT //www.koonmotors.com/releases/2023/06/230607215834.htm //www.koonmotors.com/releases/2023/05/230531150053.htm Geneticists have unearthed a major event in the ancient history of sturgeons and paddlefish that has significant implications for the way we understand evolution. They have pinpointed a previously hidden 'whole genome duplication' (WGD) in the common ancestor of these species, which seemingly opened the door to genetic variations that may have conferred an advantage around the time of a major mass extinction some 200 million years ago. Wed, 31 May 2023 15:00:53 EDT //www.koonmotors.com/releases/2023/05/230531150053.htm //www.koonmotors.com/releases/2023/05/230517121424.htm In testing the genetic material of current populations in Africa and comparing against existing fossil evidence of early Homo sapiens populations there, researchers have uncovered a new model of human evolution -- overturning previous beliefs that a single African population gave rise to all humans. Wed, 17 May 2023 12:14:24 EDT //www.koonmotors.com/releases/2023/05/230517121424.htm //www.koonmotors.com/releases/2023/05/230512144800.htm Scientists have precisely identified base pairs of the human genome that remained consistent over millions of years of mammalian evolution, and which play a crucial role in human disease. The team analyzed the genomes of 240 mammals, including humans and identified base pairs that were 'constrained' -- meaning they remained generally consistent -- across mammal species over the course of evolution. The most constrained base pairs in mammals were over seven times more likely to be causal for human disease and complex trait, and over 11 times more likely when researchers looked at the most constrained base pairs in primates alone. Fri, 12 May 2023 14:48:00 EDT //www.koonmotors.com/releases/2023/05/230512144800.htm //www.koonmotors.com/releases/2023/05/230511164457.htm A new study finds that early human species adapted to mosaic landscapes and diverse food resources, which would have increased our ancestor's resilience to past shifts in climate. Thu, 11 May 2023 16:44:57 EDT //www.koonmotors.com/releases/2023/05/230511164457.htm //www.koonmotors.com/releases/2023/05/230509122008.htm Scientists have used mitochondrial DNA to trace a female lineage from northern coastal China to the Americas. By integrating contemporary and ancient mitochondrial DNA, the team found evidence of at least two migrations: one during the last ice age, and one during the subsequent melting period. Around the same time as the second migration, another branch of the same lineage migrated to Japan, which could explain Paleolithic archeological similarities between the Americas, China, and Japan. Tue, 09 May 2023 12:20:08 EDT //www.koonmotors.com/releases/2023/05/230509122008.htm //www.koonmotors.com/releases/2023/05/230508104930.htm 人类从尼安德特人的遗传物质s that affects the shape of our noses, finds a new study. Mon, 08 May 2023 10:49:30 EDT //www.koonmotors.com/releases/2023/05/230508104930.htm //www.koonmotors.com/releases/2023/05/230503121312.htm An international research team has for the first time successfully isolated ancient human DNA from a Paleolithic artefact: a pierced deer tooth discovered in Denisova Cave in southern Siberia. To preserve the integrity of the artefact, they developed a new, nondestructive method for isolating DNA from ancient bones and teeth. From the DNA retrieved they were able to reconstruct a precise genetic profile of the woman who used or wore the pendant, as well as of the deer from which the tooth was taken. Genetic dates obtained for the DNA from both the woman and the deer show that the pendant was made between 19,000 and 25,000 years ago. The tooth remains fully intact after analysis, providing testimony to a new era in ancient DNA research, in which it may become possible to directly identify the users of ornaments and tools produced in the deep past. Wed, 03 May 2023 12:13:12 EDT //www.koonmotors.com/releases/2023/05/230503121312.htm //www.koonmotors.com/releases/2023/04/230427173435.htm Even though it is important to know where these variations are located in the genome, it's also useful to know how or why these genetic variations happened in the first place. Thu, 27 Apr 2023 17:34:35 EDT //www.koonmotors.com/releases/2023/04/230427173435.htm //www.koonmotors.com/releases/2023/03/230320143756.htm Cultivation and growth of grapevines have strongly influenced European civilizations, but where the grapevine comes from and how it has spread across the globe has been highly disputed so far. In an extensive genome project, researchers have determined its origin and evolution from the wild vine to today's cultivar by analyzing thousands of vine genomes collected along the Silk Road from China to Western Europe. Mon, 20 Mar 2023 14:37:56 EDT //www.koonmotors.com/releases/2023/03/230320143756.htm //www.koonmotors.com/releases/2023/03/230301141358.htm A world-first model of paleoclimate and hydrology in Iran has highlighted favourable routes for Neanderthals and modern human expansions eastwards into Asia. The findings reveal that multiple humid periods in ancient Iran led to the expansions of human populations, opening dispersal route across the region, and the possible interactions of species such as Neanderthals and our own Homo sapiens. Wed, 01 Mar 2023 14:13:58 EST //www.koonmotors.com/releases/2023/03/230301141358.htm //www.koonmotors.com/releases/2023/02/230221113002.htm A new study explores 'balancing selection' by analyzing thousands of modern human genomes alongside ancient hominin groups, such as Neanderthal and Denisovan genomes. The research has 'implications for understanding human diversity, the origin of diseases, and biological trade-offs that may have shaped our evolution,' says evolutionary biologists. Tue, 21 Feb 2023 11:30:02 EST //www.koonmotors.com/releases/2023/02/230221113002.htm //www.koonmotors.com/releases/2023/02/230209141458.htm 沿着海岸在Keny非洲的维多利亚湖a roughly 2.9 million years ago, early human ancestors used some of the oldest stone tools ever found to butcher hippos and pound plant material, according to new research. The study presents what are likely to be the oldest examples of a hugely important stone-age innovation known to scientists as the Oldowan toolkit, as well as the oldest evidence of hominins consuming very large animals. Excavations at the site, named Nyayanga and located on the Homa Peninsula in western Kenya, also produced a pair of massive molars belonging to the human species' close evolutionary relative Paranthropus. The teeth are the oldest fossilized Paranthropus remains yet found, and their presence at a site loaded with stone tools raises intriguing questions about which human ancestor made those tools. Thu, 09 Feb 2023 14:14:58 EST //www.koonmotors.com/releases/2023/02/230209141458.htm //www.koonmotors.com/releases/2023/02/230206104123.htm An interdisciplinary team of scientistshas found that rapid sea-level rise drove early settlers in Southeast Asia to migrate during the prehistoric period, increasing the genetic diversity of the region today. Mon, 06 Feb 2023 10:41:23 EST //www.koonmotors.com/releases/2023/02/230206104123.htm //www.koonmotors.com/releases/2023/01/230118195840.htm Neanderthals in Combe-Grenal (France) preferred to hunt in open environments, and their hunting strategies did not alter during periods of climatic change, according to a new study. Wed, 18 Jan 2023 19:58:40 EST //www.koonmotors.com/releases/2023/01/230118195840.htm //www.koonmotors.com/releases/2023/01/230111131453.htm The analysis of ancient DNA allows scientists to trace human evolution and make important discoveries about modern populations. The data revealed by ancient DNA sampling can be valuable, but the human remains that carry this ancient DNA are often those of the ancestors of modern Indigenous groups, and some communities have expressed concerns about the ethics of sampling by outside parties. A group of scientists make the case for involvement of descendant communities in all aspects of the research process. Wed, 11 Jan 2023 13:14:53 EST //www.koonmotors.com/releases/2023/01/230111131453.htm //www.koonmotors.com/releases/2022/12/221214180655.htm Human bipedalism -- walking upright on two legs -- may have evolved in trees, and not on the ground as previously thought, according to a new study. Wed, 14 Dec 2022 18:06:55 EST //www.koonmotors.com/releases/2022/12/221214180655.htm //www.koonmotors.com/releases/2022/12/221208174250.htm Modern Papuans' immune system likely evolved with a little help from the Denisovans, a mysterious human ancestor who interbred with ancient humans, according to a new study. Thu, 08 Dec 2022 17:42:50 EST //www.koonmotors.com/releases/2022/12/221208174250.htm //www.koonmotors.com/releases/2022/12/221206204814.htm For over a century, one of the earliest human fossils ever discovered in Spain has been long considered a Neanderthal. However, new analysis from an international research team dismantles this century-long interpretation, demonstrating that this fossil is not a Neanderthal; rather, it may actually represent the earliest presence of Homo sapiens ever documented in Europe. Tue, 06 Dec 2022 20:48:14 EST //www.koonmotors.com/releases/2022/12/221206204814.htm //www.koonmotors.com/releases/2022/11/221123114249.htm A team of researchers has identified a group of human DNA sequences driving changes in brain development, digestion and immunity that seem to have evolved rapidly after our family line split from that of the chimpanzees, but before we split with the Neanderthals. Wed, 23 Nov 2022 11:42:49 EST //www.koonmotors.com/releases/2022/11/221123114249.htm //www.koonmotors.com/releases/2022/11/221114111017.htm The remains of a huge carp fish mark the earliest signs of cooking by prehistoric human to 780,000 years ago, predating the available data by some 600,000 years, according to researchers. Mon, 14 Nov 2022 11:10:17 EST //www.koonmotors.com/releases/2022/11/221114111017.htm //www.koonmotors.com/releases/2022/11/221102085438.htm Using DNA from two ancient humans unearthed in two different archaeological sites in northeast Brazil, researchers have unraveled the deep demographic history of South America at the regional level with some surprising results. Not only do they provide new genetic evidence supporting existing archaeological data of the north-to-south migration toward South America, they also have discovered migrations in the opposite direction along the Atlantic coast -- for the first time. Among the key findings, they also have discovered evidence of Neanderthal ancestry within the genomes of ancient individuals from South America. Wed, 02 Nov 2022 08:54:38 EDT //www.koonmotors.com/releases/2022/11/221102085438.htm //www.koonmotors.com/releases/2022/10/221031212802.htm The use of ancient DNA, including samples of human remains around 45,000 years old, has shed light on a previously unknown aspect of human evolution. Mon, 31 Oct 2022 21:28:02 EDT //www.koonmotors.com/releases/2022/10/221031212802.htm //www.koonmotors.com/releases/2022/10/221024131042.htm The first genetic data from Palaeolithic human individuals in the UK -- the oldest human DNA obtained from the British Isles so far -- indicates the presence of two distinct groups that migrated to Britain at the end of the last ice age, according to new research. Published today in Nature Ecology and Evolution, the new study by UCL Institute of Archaeology, the Natural History Museum and the Francis Crick Institute researchers reveals for the first time that the recolonisation of Britain consisted of at least two groups with distinct origins and cultures. Mon, 24 Oct 2022 13:10:42 EDT //www.koonmotors.com/releases/2022/10/221024131042.htm //www.koonmotors.com/releases/2022/10/221019111328.htm Researchers have managed to sequence multiple individuals from a remote Neanderthal community in Siberia. Among these thirteen individuals, the researchers identified multiple related individuals -- among these a father and his teenage daughter. The researchers were also able to use the thirteen genomes to provide a glimpse into the social organization of a Neanderthal community. They appear to have been a small group of close relatives, consisting of ten to twenty members, and communities were primarily connected through female migration. Wed, 19 Oct 2022 11:13:28 EDT //www.koonmotors.com/releases/2022/10/221019111328.htm //www.koonmotors.com/releases/2022/09/220926114929.htm Interdisciplinary research in southern Ethiopia enabled the deciphering of eastern Africa's climatic heartbeat and shows how key phases of climate change influenced human evolution, dispersal and innovation. Mon, 26 Sep 2022 11:49:29 EDT //www.koonmotors.com/releases/2022/09/220926114929.htm //www.koonmotors.com/releases/2022/09/220922124516.htm Mutations can drastically help or hurt the odds of an organism surviving and reproducing. Researchers have created a computer program called ExtRaINSIGHT that tracks the history of harmful mutations throughout human evolution. They've discovered several regions of the genome are especially vulnerable to mutations, meaning any mutations there could lead to severe or lethal consequences. Thu, 22 Sep 2022 12:45:16 EDT //www.koonmotors.com/releases/2022/09/220922124516.htm //www.koonmotors.com/releases/2022/09/220914102015.htm A team of scientists has discovered the earliest gibbon fossil, a find that helps fill a long-elusive evolutionary gap in the history of apes. Wed, 14 Sep 2022 10:20:15 EDT //www.koonmotors.com/releases/2022/09/220914102015.htm //www.koonmotors.com/releases/2022/09/220908172244.htm 使现代人类独特的问题哈s long been a driving force for researchers. Comparisons with our closest relatives, the Neanderthals, therefore provide fascinating insights. The increase in brain size, and in neuron production during brain development, are considered to be major factors for the increased cognitive abilities that occurred during human evolution. However, while both Neanderthals and modern humans develop brains of similar size, very little is known about whether modern human and Neanderthal brains may have differed in terms of their neuron production during development. Researchers now show that the modern human variant of the protein TKTL1, which differs by only a single amino acid from the Neanderthal variant, increases one type of brain progenitor cells, called basal radial glia, in the modern human brain. Thu, 08 Sep 2022 17:22:44 EDT //www.koonmotors.com/releases/2022/09/220908172244.htm //www.koonmotors.com/releases/2022/08/220824120832.htm The modalities and date of emergence of bipedalism remain bitterly debated, in particular because of a small number of very old human fossils. Sahelanthropus tchadensis, discovered in 2001 in Chad, is considered to be the oldest representative of the humankind. The shape of its cranium suggests a bipedal station. The description of three limb bones of Sahelanthropus confirms habitual bipedalism, but not exclusively. Wed, 24 Aug 2022 12:08:32 EDT //www.koonmotors.com/releases/2022/08/220824120832.htm //www.koonmotors.com/releases/2022/08/220823115636.htm Research has established that there are traces of Neandertal DNA in the genome of modern humans. Now an exploratory study that assessed the facial structure of prehistoric skulls is offering new insights, and supports the hypothesis that much of this interbreeding took place in the Near East -- the region ranging from North Africa to Iraq. Tue, 23 Aug 2022 11:56:36 EDT //www.koonmotors.com/releases/2022/08/220823115636.htm //www.koonmotors.com/releases/2022/08/220807102043.htm Did the 12th century B.C.E. -- a time when humans were forging great empires and developing new forms of written text -- coincide with an evolutionary reduction in brain size? Think again, says a team of researchers whose new paper refutes a hypothesis that's growing increasingly popular among the science community. Sun, 07 Aug 2022 10:20:43 EDT //www.koonmotors.com/releases/2022/08/220807102043.htm //www.koonmotors.com/releases/2022/07/220729173145.htm Researchers find that stem cells in the developing brain of modern humans take longer to divide and make fewer errors when distributing their chromosomes to their daughter cells, compared to those of Neanderthals. Fri, 29 Jul 2022 17:31:45 EDT //www.koonmotors.com/releases/2022/07/220729173145.htm //www.koonmotors.com/releases/2022/07/220727110243.htm Whether by the spear or the plow, humans have been homogenizing the mammal communities of North America for 10,000-plus years, says a new analysis of 8,831 fossils representing 365 species. Wed, 27 Jul 2022 11:02:43 EDT //www.koonmotors.com/releases/2022/07/220727110243.htm //www.koonmotors.com/releases/2022/07/220719102329.htm The study of the genomes of our closest relatives, the Neanderthals and Denisovans, has opened up new research paths that can broaden our understanding of the evolutionary history of Homo sapiens. A new study has made an estimation of the time when some of the genetic variants that characterize our species emerged. It does so by analyzing mutations that are very frequent in modern human populations, but not in these other species of archaic humans. Tue, 19 Jul 2022 10:23:29 EDT //www.koonmotors.com/releases/2022/07/220719102329.htm //www.koonmotors.com/releases/2022/07/220707141755.htm In a new paper, researchers challenge the longstanding view that the force of natural selection in humans must decline to zero once reproduction is complete. They assert that a long post-reproductive lifespan is not just due to recent advancements in health and medicine. The secret to our success? Our grandparents. Thu, 07 Jul 2022 14:17:55 EDT //www.koonmotors.com/releases/2022/07/220707141755.htm //www.koonmotors.com/releases/2022/06/220630142204.htm New genetic research from remote islands in the Pacific offers fresh insights into the ancestry and culture of the world's earliest seafarers, including family structure, social customs, and the ancestral populations of the people living there today. Thu, 30 Jun 2022 14:22:04 EDT //www.koonmotors.com/releases/2022/06/220630142204.htm //www.koonmotors.com/releases/2022/06/220627100154.htm Scientists reveal an advanced, innovative method that they have developed and used to detect nonvisual traces of fire dating back at least 800,000 years -- one of the earliest known pieces of evidence for the use of fire. The newly developed technique may provide a push toward a more scientific, data-driven type of archaeology, but -- perhaps more importantly -- it could help us better understand the origins of the human story, our most basic traditions and our experimental and innovative nature. Mon, 27 Jun 2022 10:01:54 EDT //www.koonmotors.com/releases/2022/06/220627100154.htm //www.koonmotors.com/releases/2022/06/220606181204.htm A new study is providing an enhanced look at the intertwined evolutionary histories of polar bears and brown bears. Becoming separate species did not completely stop these animals from mating with each other. Scientists have known this for some time, but the new research draws on an expanded dataset -- including DNA from an ancient polar bear tooth -- to tease out more detail. Mon, 06 Jun 2022 18:12:04 EDT //www.koonmotors.com/releases/2022/06/220606181204.htm //www.koonmotors.com/releases/2022/06/220602095108.htm Modern humans are characterized by their prosociality, a broad term that encompasses intraspecies empathy, social tolerance, cooperation and altruism. These facets of social cognition have been associated with variations in the oxytocin and vasotocin genes (OT and VT) and their receptors (OTR and VTR).To shed light on the genetic basis of this behavior, scientists carried out a new study comparing the available genomic sequences of these genes between modern humans, non-human primate species (e.g., chimpanzees, bonobos, and macaques) and archaic humans, using all the available genomes of Neanderthals and Denisovans. Thu, 02 Jun 2022 09:51:08 EDT //www.koonmotors.com/releases/2022/06/220602095108.htm //www.koonmotors.com/releases/2022/05/220517210409.htm What links a finger bone and some fossil teeth found in a cave in the remote Altai Mountains of Siberia to a single tooth found in a cave in the limestone landscapes of tropical Laos? The answer to this question has been established by an international team of researchers from Laos, Europe, the US and Australia. The human tooth was chanced upon during an archaeological survey in a remote area of Laos. The scientists have shown it originated from the same ancient human population first recognised in Denisova Cave (dubbed the Denisovans), in the Altai Mountains of Siberia (Russia). Tue, 17 May 2022 21:04:09 EDT //www.koonmotors.com/releases/2022/05/220517210409.htm //www.koonmotors.com/releases/2022/05/220511123507.htm The first whole genome sequences of the ancient people of Uruguay provide a genetic snapshot of Indigenous populations of the region before they were decimated by a series of European military campaigns. Wed, 11 May 2022 12:35:07 EDT //www.koonmotors.com/releases/2022/05/220511123507.htm //www.koonmotors.com/releases/2022/05/220510102920.htm Childbirth in humans is much more complex and painful than in great apes. It was long believed that this was a result of humans' larger brains and the narrow dimensions of the mother's pelvis. Researchers have now used 3D simulations to show that childbirth was also a highly complex process in early hominins that gave birth to relatively small-brained newborns -- with important implications for their cognitive development. Tue, 10 May 2022 10:29:20 EDT //www.koonmotors.com/releases/2022/05/220510102920.htm //www.koonmotors.com/releases/2022/04/220422114740.htm Evidence of the early colonization of the Pacific has been described as like finding a needle in a haystack by researchers who have unearthed items from more than 3000 years ago in Papua New Guinea. Fri, 22 Apr 2022 11:47:40 EDT //www.koonmotors.com/releases/2022/04/220422114740.htm //www.koonmotors.com/releases/2022/04/220413131147.htm A study provides clear evidence for a link between astronomically-driven climate change and human evolution. Wed, 13 Apr 2022 13:11:47 EDT //www.koonmotors.com/releases/2022/04/220413131147.htm //www.koonmotors.com/releases/2022/04/220406101658.htm Scientists have solved a 100-year-old mystery about the evolutionary links between malaria parasites that infect humans and chimpanzees. Wed, 06 Apr 2022 10:16:58 EDT //www.koonmotors.com/releases/2022/04/220406101658.htm //www.koonmotors.com/releases/2022/03/220330141403.htm Neandertal populations in the Iberian Peninsula were experiencing local extinction and replacement even before Homo sapiens arrived, according to a new study. Wed, 30 Mar 2022 14:14:03 EDT //www.koonmotors.com/releases/2022/03/220330141403.htm //www.koonmotors.com/releases/2022/03/220318080244.htm Researchers have for the first time been able to create an RNA molecule that replicates, diversifies and develops complexity, following Darwinian evolution. This has provided empirical evidence that simple biological molecules can lead to the emergence of complex lifelike systems. Fri, 18 Mar 2022 08:02:44 EDT //www.koonmotors.com/releases/2022/03/220318080244.htm //www.koonmotors.com/releases/2022/03/220309104414.htm Researchers have examined what factors drive hair variation in a wild population of lemurs known as Indriidae. Specifically, the researchers aimed to assess the impacts of climate, body size and color vision on hair evolution. Wed, 09 Mar 2022 10:44:14 EST //www.koonmotors.com/releases/2022/03/220309104414.htm //www.koonmotors.com/releases/2022/03/220302110555.htm 智人的数量是什么时候第一次到达in China and what happened when they encountered the Denisovans or Neanderthals who lived there? A new study opens a window into hunter-gatherer lifestyles 40,000 years ago. Archaeological excavations at the site of Xiamabei in the Nihewan Basin of northern China have revealed the presence of innovative behaviors and unique toolkits. Wed, 02 Mar 2022 11:05:55 EST //www.koonmotors.com/releases/2022/03/220302110555.htm //www.koonmotors.com/releases/2022/02/220224140841.htm Researchers have taken a major step towards mapping the entirety of genetic relationships among humans: a single genealogy that traces the ancestry of all of us. Thu, 24 Feb 2022 14:08:41 EST //www.koonmotors.com/releases/2022/02/220224140841.htm