//www.koonmotors.com/news/fossils_ruins/early_mammals/ Prehistoric Mammal News. From the first swimming mammals to a banana-jawed fossil mammal, read about all the news in paleontology. Current science articles and images. en-us Thu, 07 Sep 2023 22:54:42 EDT Thu, 07 Sep 2023 22:54:42 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/fossils_ruins/early_mammals/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230831142901.htm An international team of marine scientists has studied the DNA of family groups from four different whale species to estimate their mutation rates. Using the newly determined rates, the group found that the number of humpback whales in the North Atlantic before whaling was 86 percent lower than earlier studies suggested. Thu, 31 Aug 2023 14:29:01 EDT //www.koonmotors.com/releases/2023/08/230831142901.htm //www.koonmotors.com/releases/2023/08/230818004744.htm Radiocarbon dating on bones in the La Brea Tar Pits lead archaeologists to warn that history may be repeating itself. Fri, 18 Aug 2023 00:47:44 EDT //www.koonmotors.com/releases/2023/08/230818004744.htm //www.koonmotors.com/releases/2023/07/230718164250.htm Scientists have described an unusual fossil from around 125 million years ago in China that shows a dramatic moment in time when a carnivorous mammal attacked a larger plant-eating dinosaur. The two animals are locked in mortal combat, and it's among the first evidence to show actual predatory behavior by a mammal on a dinosaur. The fossil's presence challenges the view that dinosaurs had few threats from their mammal contemporaries during the Cretaceous, when dinosaurs were the dominant animals. Tue, 18 Jul 2023 16:42:50 EDT //www.koonmotors.com/releases/2023/07/230718164250.htm //www.koonmotors.com/releases/2023/07/230712165150.htm Ice Age saber-tooth cats and dire wolves experienced a high incidence of bone disease in their joints, according to new research. Wed, 12 Jul 2023 16:51:50 EDT //www.koonmotors.com/releases/2023/07/230712165150.htm //www.koonmotors.com/releases/2023/07/230711133155.htm A new study reveals the iconic extinct Megalodon, or 'megatooth shark', was a rather slow cruiser that used its warm-bloodedness to facilitate digestion and absorption of nutrients. Tue, 11 Jul 2023 13:31:55 EDT //www.koonmotors.com/releases/2023/07/230711133155.htm //www.koonmotors.com/releases/2023/07/230710180527.htm Researchers have finally settled a decades-long dispute about the evolutionary origins of the pygmy right whale. Mon, 10 Jul 2023 18:05:27 EDT //www.koonmotors.com/releases/2023/07/230710180527.htm //www.koonmotors.com/releases/2023/06/230627225225.htm The lower jaws of lizards, birds, fish and even dinosaurs are comprised of multiple bones per side. Yet mammals diverged from all other vertebrates and settled on just one bone, repurposing the extra bones into a more elaborate inner ear, perhaps the better to hear. The single bone per side, fused in primates into one jawbone, makes the jaw more rigid. A paleontologist asks, Did the stiffer, rigid jaw make mammals more successful? Tue, 27 Jun 2023 22:52:25 EDT //www.koonmotors.com/releases/2023/06/230627225225.htm //www.koonmotors.com/releases/2023/06/230627123015.htm 胎盘类哺乳动物的起源白垩纪,group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a short time before the dinosaurs went extinct. Tue, 27 Jun 2023 12:30:15 EDT //www.koonmotors.com/releases/2023/06/230627123015.htm //www.koonmotors.com/releases/2023/06/230626164144.htm How the megalodon, a shark that went extinct 3.6 million years ago, stayed warm was a matter of speculation among scientists. Using an analysis of tooth fossils from the megalodon and other sharks of the same period, a study suggests the animal was able to maintain a body temperature well above the temperature of the water in which it lived. The finding could help explain why the megalodon went extinct during the Pliocene Epoch. Mon, 26 Jun 2023 16:41:44 EDT //www.koonmotors.com/releases/2023/06/230626164144.htm //www.koonmotors.com/releases/2023/06/230608195648.htm A groundbreaking new paper focuses on the size and abundance of living and fossil African large mammals, shedding light on the ecological dynamics behind the decline of these iconic creatures. The findings challenge previous assumptions about the causes of megafaunal extinctions in Africa and provide new insights into the restructuring of ecosystems over millions of years. Thu, 08 Jun 2023 19:56:48 EDT //www.koonmotors.com/releases/2023/06/230608195648.htm //www.koonmotors.com/releases/2023/05/230522131341.htm Understanding that others hold different viewpoints from your own is essential for human sociality. Adopting another person's visual perspective is a complex skill that emerges around the age of two. A new study suggests that this ability first arose in dinosaurs, at least 60 million years before it appeared in mammals. These findings challenge the idea that mammals were the originators of novel and superior forms of intelligence in the wake of the dinosaur extinction. Mon, 22 May 2023 13:13:41 EDT //www.koonmotors.com/releases/2023/05/230522131341.htm //www.koonmotors.com/releases/2023/05/230522131304.htm A tiger-sized saber-toothed creature called Inostrancevia has previously only been found in Russia. But scientists have discovered its fossils in South Africa, suggesting that it migrated 7,000 miles across the supercontinent Pangaea during the world's worst mass extinction 252 million years ago. Heading to South Africa allowed it to fill a gap in a faraway ecosystem that had lost its top predators. Mon, 22 May 2023 13:13:04 EDT //www.koonmotors.com/releases/2023/05/230522131304.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/2023/05/230503121310.htm 性激素的痕迹提取的老妈moth's tusk provide the first direct evidence that adult males experienced musth, a testosterone-driven episode of heightened aggression against rival males, according to a new study. Wed, 03 May 2023 12:13:10 EDT //www.koonmotors.com/releases/2023/05/230503121310.htm //www.koonmotors.com/releases/2023/04/230428153612.htm Scientists from around the globe are using the largest mammalian genomic dataset in history to determine the evolutionary history of the human genome in the context of mammalian evolutionary history. Their ultimate goal is to better identify the genetic basis for traits and diseases in people and other species. Fri, 28 Apr 2023 15:36:12 EDT //www.koonmotors.com/releases/2023/04/230428153612.htm //www.koonmotors.com/releases/2023/04/230427173438.htm What the human genome is lacking compared with the genomes of other primates might have been as crucial to the development of humankind as what has been added during our evolutionary history, according to a new study led by researchers at Yale and the Broad Institute of MIT and Harvard. The new findings, published April 28 in the journal Science, fill an important gap in what is known about historical changes to the human genome. Thu, 27 Apr 2023 17:34:38 EDT //www.koonmotors.com/releases/2023/04/230427173438.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/2023/04/230419095538.htm We now know more about the diet of a prehistoric creature that grew up to two and a half meters long and lived in Australian waters during the time of the dinosaurs, thanks to the power of x-rays. Researchers used micro-CT scans to peer inside the fossilized stomach remains of a small marine reptile -- a plesiosaur nicknamed 'Eric' after a song from the comedy group Monty Python -- to determine what the creature ate in the lead up to its death. Wed, 19 Apr 2023 09:55:38 EDT //www.koonmotors.com/releases/2023/04/230419095538.htm //www.koonmotors.com/releases/2023/04/230413154245.htm Anthropologists have long thought that our ape ancestors evolved an upright torso in order to pick fruit in forests, but new research from the University of Michigan suggests a life in open woodlands and a diet that included leaves drove apes' upright stature. Thu, 13 Apr 2023 15:42:45 EDT //www.koonmotors.com/releases/2023/04/230413154245.htm //www.koonmotors.com/releases/2023/04/230412131206.htm The ancestors of modern mammals managed to evolve into one of the most successful animal lineages -- the key was to start out small and simple, a new study reveals. Wed, 12 Apr 2023 13:12:06 EDT //www.koonmotors.com/releases/2023/04/230412131206.htm //www.koonmotors.com/releases/2023/04/230407110720.htm A team of researchers compared the genomes of woolly mammoths with modern day elephants to find out what made woolly mammoths unique, both as individuals and as a species. The investigators report that many of the woolly mammoth's trademark features -- including their woolly coats and large fat deposits -- were already genetically encoded in the earliest woolly mammoths, but these and other traits became more defined over the species' 700,000+ year existence. They also identified a gene with several mutations that may have been responsible for the woolly mammoth's miniscule ears. Fri, 07 Apr 2023 11:07:20 EDT //www.koonmotors.com/releases/2023/04/230407110720.htm //www.koonmotors.com/releases/2023/03/230330172120.htm A new study suggests that predatory dinosaurs, such as Tyrannosaurus rex, did not have permanently exposed teeth as depicted in films such as Jurassic Park, but instead had scaly, lizard-like lips covering and sealing their mouths. Thu, 30 Mar 2023 17:21:20 EDT //www.koonmotors.com/releases/2023/03/230330172120.htm //www.koonmotors.com/releases/2023/03/230321112630.htm A new study investigates how an extinct, carnivorous marsupial relative with canines so large they extended across the top of its skull could hunt effectively despite having wide-set eyes, like a cow or a horse. The skulls of carnivores typically have forward-facing eye sockets, or orbits, which helps enable stereoscopic (3D) vision, a useful adaptation for judging the position of prey before pouncing. Scientists studied whether the 'marsupial sabertooth' Thylacosmilus atrox could see in 3D at all. Tue, 21 Mar 2023 11:26:30 EDT //www.koonmotors.com/releases/2023/03/230321112630.htm //www.koonmotors.com/releases/2023/02/230228154502.htm A review of evidence from prior research provides new support for the possibility that the evolution of larger brains in some species was enabled through increased energy investment by parents in their offspring. Tue, 28 Feb 2023 15:45:02 EST //www.koonmotors.com/releases/2023/02/230228154502.htm //www.koonmotors.com/releases/2023/01/230112155821.htm A study is providing a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, just before the non-avian dinosaurs went extinct. The fossils represent the first record of theropods -- a dinosaur group that includes both modern birds and their closest non-avian dinosaur relatives -- from the Chilean portion of Patagonia. The researchers' finds include giant megaraptors with large sickle-like claws and birds similar to todays ducks and geese. Thu, 12 Jan 2023 15:58:21 EST //www.koonmotors.com/releases/2023/01/230112155821.htm //www.koonmotors.com/releases/2023/01/230104135604.htm 猩猩、老鼠和马是覆盖着它,but humans aren't. Why we have significantly less body hair than most other mammals has long remained a mystery. But a first-of-its-kind comparison of genetic codes from 62 animals is beginning to tell the story of how people -- and other mammals -- lost their locks. Wed, 04 Jan 2023 13:56:04 EST //www.koonmotors.com/releases/2023/01/230104135604.htm //www.koonmotors.com/releases/2022/12/221221121310.htm Microraptor was an opportunistic predator, feeding on fish, birds, lizards -- and now small mammals. The discovery of a rare fossil reveals the creature was a generalist carnivore in the ancient ecosystem of dinosaurs. Wed, 21 Dec 2022 12:13:10 EST //www.koonmotors.com/releases/2022/12/221221121310.htm //www.koonmotors.com/releases/2022/12/221214113926.htm Sediment cores obtained from Eifel maar sites provide insight into the presence of large Ice Age mammals in Central Europe over the past 60,000 years: Overkill hypothesis not confirmed. Herds of megafauna, such as mammoth and bison, have roamed the prehistoric plains in what is today's Central Europe for several tens of thousands of years. As woodland expanded at the end of the last Ice Age, the numbers of these animals declined and by roughly 11,000 years ago, they had completely vanished from this region. Thus, the growth of forests was the main factor that determined the extinction of such megafauna in Central Europe. Wed, 14 Dec 2022 11:39:26 EST //www.koonmotors.com/releases/2022/12/221214113926.htm //www.koonmotors.com/releases/2022/12/221212140813.htm While the Diprotodon -- the extinct megafauna species that is distantly related to wombats but was the size of a small car -- is commonly (but incorrectly) thought of as Australia's 'giant wombat', researchers have shed light on a large species that does belong in the modern-day wombat family. The complete skull of this true fossil giant wombat, found in a Rockhampton cave in Queensland, Australia and estimated to be around 80,000 years old, has been described for the first time. Mon, 12 Dec 2022 14:08:13 EST //www.koonmotors.com/releases/2022/12/221212140813.htm //www.koonmotors.com/releases/2022/12/221208114733.htm 研究人员测试了咬年代的效率milodon, an extinct species of carnivore close to the extant felines. Using high-precision 3D scans and simulation methods, the team has just revealed how these animals managed to bite despite the impressive length of their teeth. Thu, 08 Dec 2022 11:47:33 EST //www.koonmotors.com/releases/2022/12/221208114733.htm //www.koonmotors.com/releases/2022/12/221207142210.htm Dinosaurs dominated the world right up until a deadly asteroid hit the earth, leading to their mass extinction, some 66 million years ago, a landmark study reveals. Fresh insights into dinosaurs' ecosystems -- the habitats and food types that supported their lives -- suggests that their environments were robust and thriving, right up until that fateful day, at the end of the Cretaceous period. Wed, 07 Dec 2022 14:22:10 EST //www.koonmotors.com/releases/2022/12/221207142210.htm //www.koonmotors.com/releases/2022/11/221130114431.htm Paleontologists say environmental DNA is not always helpful in identifying when animals like mammoths went extinct because genetic material found in sediment could have come from animals that died thousands of years earlier. Wed, 30 Nov 2022 11:44:31 EST //www.koonmotors.com/releases/2022/11/221130114431.htm //www.koonmotors.com/releases/2022/11/221128162123.htm A new study compiles data on more than 3,000 species to show how climate and geologic changes across Asia over the last 66 million years have shaped the evolution of the continent's mammals. Mon, 28 Nov 2022 16:21:23 EST //www.koonmotors.com/releases/2022/11/221128162123.htm //www.koonmotors.com/releases/2022/10/221011161304.htm Today, increasing levels of carbon dioxide in the atmosphere are warming up the planet. Climate change can disrupt the balance of ecosystems and contribute to endangerment and extinction of some species. New research suggests that a period of intense volcanism in the Central Andes may be the missing link in the story of past climate changes that led to the extinctions of ancient marine mammals. Tue, 11 Oct 2022 16:13:04 EDT //www.koonmotors.com/releases/2022/10/221011161304.htm //www.koonmotors.com/releases/2022/10/221007112113.htm A giant kangaroo that once roamed on four legs through remote forests in the Papua New Guinea Highlands may have survived as recently as 20,000 years ago -- long after large-bodied megafauna on mainland Australia went extinct, new research indicates. Palaeontologists, archaeologists and geoscientists, have used new techniques to re-examine megafauna bones from the rich Nombe Rock Shelter fossil site in Chimbu Province in a bid to better understand the intriguing natural history of PNG. Fri, 07 Oct 2022 11:21:13 EDT //www.koonmotors.com/releases/2022/10/221007112113.htm //www.koonmotors.com/releases/2022/09/220928094821.htm An international team has reconstructed the genome organization of the earliest common ancestor of all mammals. The reconstructed ancestral genome could help in understanding the evolution of mammals and in conservation of modern animals. The earliest mammal ancestor likely looked like the fossil animal 'Morganucodon' which lived about 200 million years ago. Wed, 28 Sep 2022 09:48:21 EDT //www.koonmotors.com/releases/2022/09/220928094821.htm //www.koonmotors.com/releases/2022/09/220902103255.htm Did the first ancestors of whales pick up where the mosasaurs left off 66 million years ago, after the extinction of all the large predatory marine reptiles? A study has looked into the possible convergences in morphology and behavior that may exist between these two groups of large marine predatory animals. Fri, 02 Sep 2022 10:32:55 EDT //www.koonmotors.com/releases/2022/09/220902103255.htm //www.koonmotors.com/releases/2022/08/220829194734.htm Approximately 13.5 million years ago, north-west Queensland was home to an unusual and particularly tiny species of crocodile and now scientists are unlocking its secrets. Mon, 29 Aug 2022 19:47:34 EDT //www.koonmotors.com/releases/2022/08/220829194734.htm //www.koonmotors.com/releases/2022/08/220823115620.htm To investigate whether paleoclimatic temperature shifts are correlated with body size changes, biologists decided to test this hypothesis using tetraodontiform fishes as a model group. Tue, 23 Aug 2022 11:56:20 EDT //www.koonmotors.com/releases/2022/08/220823115620.htm //www.koonmotors.com/releases/2022/08/220810123606.htm A new study shows that 87 genes have been affected by deletions or short insertions during the course of the mammoth's evolution. The researchers note that their findings have implications for international efforts to resurrect extinct species, including the woolly mammoth. Wed, 10 Aug 2022 12:36:06 EDT //www.koonmotors.com/releases/2022/08/220810123606.htm //www.koonmotors.com/releases/2022/08/220809141227.htm Researchers successfully captured CT images of an entire woolly mammoth tusk. Researchers were able to do a full scan of the tusk in its entirety -- or in toto -- using a newer clinical CT scanner. The new technology allows for large-scale imaging without having to do multiple partial scans. Tue, 09 Aug 2022 14:12:27 EDT //www.koonmotors.com/releases/2022/08/220809141227.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/2022/07/220725105714.htm Which group of mammals has the more 'primitive' reproductive strategy -- marsupials, with their short gestation periods, or humans and other placental mammals, which have long gestation periods? For decades, biologists viewed marsupial reproduction as 'more primitive.' But scientists have discovered that a third group of mammals, the long-extinct multituberculates, had a long gestation period like placental mammals. Since multituberculates split off from the rest of the mammalian lineage before placentals and marsupials had even evolved, these findings question the view that marsupials were 'less advanced' than their placental cousins. Mon, 25 Jul 2022 10:57:14 EDT //www.koonmotors.com/releases/2022/07/220725105714.htm //www.koonmotors.com/releases/2022/07/220720121004.htm Warm-bloodedness is a key mammal trait, but it's been a mystery when our ancestors evolved it. A new study points to an unlikely source for telling a fossil animal's body temperature: the size of tiny structures in their inner ears. The fluid in our ears becomes runnier at higher temperatures, so animals with warm bodies don't need as big of canals for it to flow through. Turns out, mammal ancestors became warm-blooded nearly 20 million years later than previously thought. Wed, 20 Jul 2022 12:10:04 EDT //www.koonmotors.com/releases/2022/07/220720121004.htm //www.koonmotors.com/releases/2022/07/220704180926.htm According to a new study, the first louse to take up residence on a mammalian host likely started out as a parasite of birds. That host-jumping event tens of millions of years ago began the long association between mammals and lice, setting the stage for their coevolution and offering more opportunities for the lice to spread to other mammals. Mon, 04 Jul 2022 18:09:26 EDT //www.koonmotors.com/releases/2022/07/220704180926.htm //www.koonmotors.com/releases/2022/07/220701163259.htm The fossil record tells us about ancient life through the preserved remains of body parts like bones, teeth and turtle shells. But how to study the history of soft tissues and organs, which can decay quickly, leaving little evidence behind? In a new study, scientists use gene expression patterns, called transcriptomics, to investigate the ancient origins of one organ: the placenta, which is vital to pregnancy. Fri, 01 Jul 2022 16:32:59 EDT //www.koonmotors.com/releases/2022/07/220701163259.htm //www.koonmotors.com/releases/2022/06/220629084040.htm Australian palaeontologists have described a new genus of giant fossil kangaroo from the mountains of central Papua New Guinea. The new description of the fossil kangaroo has found that, rather than being closely related to Australian kangaroos, it most likely belongs to a unique genus of more primitive kangaroo found only in PNG. Wed, 29 Jun 2022 08:40:40 EDT //www.koonmotors.com/releases/2022/06/220629084040.htm //www.koonmotors.com/releases/2022/05/220525110846.htm Paleontologists have debated whether dinosaurs were warm-blooded, like modern mammals and birds, or cold-blooded, like modern reptiles. In a new paper, scientists are unveiling a new method for studying dinosaurs' metabolic rates, using clues in their bones. Wed, 25 May 2022 11:08:46 EDT //www.koonmotors.com/releases/2022/05/220525110846.htm //www.koonmotors.com/releases/2022/05/220512211328.htm Jars of tiny platypus and echidna specimens, collected in the late 1800s by the scientist William Caldwell, have been discovered in the stores of Cambridge's University Museum of Zoology. Thu, 12 May 2022 21:13:28 EDT //www.koonmotors.com/releases/2022/05/220512211328.htm //www.koonmotors.com/releases/2022/05/220509112041.htm 研究人员研究了l的大规模灭绝arge animals over the past tens of thousands of years and found that extinct species had, on average, much smaller brains than species that survived. Mon, 09 May 2022 11:20:41 EDT //www.koonmotors.com/releases/2022/05/220509112041.htm //www.koonmotors.com/releases/2022/04/220421131006.htm Human-related extinctions of the largest herbivores and carnivores are disrupting what appears to be a fundamental feature of past and present ecosystems, says a new study. Thu, 21 Apr 2022 13:10:06 EDT //www.koonmotors.com/releases/2022/04/220421131006.htm //www.koonmotors.com/releases/2022/04/220411160512.htm A new study combining records of climate change during the last 3.5 million years with fossil evidence of mammals in Africa reveals that times of erratic climate change are not followed by major upheavals in evolution. Mon, 11 Apr 2022 16:05:12 EDT //www.koonmotors.com/releases/2022/04/220411160512.htm //www.koonmotors.com/releases/2022/03/220331151526.htm Prehistoric mammals bulked up, rather than develop bigger brains, to boost their survival chances once dinosaurs had become extinct, research suggests. Thu, 31 Mar 2022 15:15:26 EDT //www.koonmotors.com/releases/2022/03/220331151526.htm //www.koonmotors.com/releases/2022/03/220309111050.htm Dinosaurs went extinct 65 million years ago, mammoths 4,000 years ago, and the Christmas Island Rat 119 years ago. Since becoming a popular concept in the 1990s, de-extinction efforts have focused on grand animals with mythical stature, but now a team of paleogeneticists has turned their attention to Rattus macleari, and their findings provide insights into the limitations of de-extinction across all species. Wed, 09 Mar 2022 11:10:50 EST //www.koonmotors.com/releases/2022/03/220309111050.htm //www.koonmotors.com/releases/2022/03/220307132059.htm A new study provides vital clues on when killer whales began feeding on other marine mammals. Mon, 07 Mar 2022 13:20:59 EST //www.koonmotors.com/releases/2022/03/220307132059.htm //www.koonmotors.com/releases/2022/03/220302092713.htm Paleontologists from La Brea Tar Pits develop a whole herd of scientifically accurate extinct animals to use in AR and VR. Wed, 02 Mar 2022 09:27:13 EST //www.koonmotors.com/releases/2022/03/220302092713.htm //www.koonmotors.com/releases/2022/03/220302092702.htm Abrupt shifts in the evolution of animals -- short periods of time when an organism rapidly changes size or form -- have long been a challenge for theorists including Darwin. Now a newly published research paper supports the idea that even these abrupt changes are underpinned by a gradual directional process of successive incremental changes, as Darwin's theory of evolution assumes. Wed, 02 Mar 2022 09:27:02 EST //www.koonmotors.com/releases/2022/03/220302092702.htm //www.koonmotors.com/releases/2022/02/220222125110.htm A team of geologists and palaeontologists has discovered that, some 50 million years ago, there was a low-lying continent separating Europe from Asia that they have named Balkanatolia. At the time, it was inhabited by an endemic fauna that was very different from those of Europe and Asia. Geographical changes 40 to 34 million years ago connected this continent to its two neighbors, paving the way for the replacement of European mammals by Asian mammals. Tue, 22 Feb 2022 12:51:10 EST //www.koonmotors.com/releases/2022/02/220222125110.htm //www.koonmotors.com/releases/2022/02/220208105222.htm During the Ice Age, giant mammals such as mammoths, sabre-toothed cats and woolly rhinoceroses once roamed Northern Europe and America. The cold oceans of the northern hemisphere were also home to giants like Steller's sea cow, which grew up to eight meters long and weighed up to ten tons, and has been extinct for around 250 years. Now an international research team has succeeded in deciphering the genome of this ice-age species from fossil bones. They also found an answer to the question of what the genome of this extinct species of sea cow reveals about present-day skin diseases. Tue, 08 Feb 2022 10:52:22 EST //www.koonmotors.com/releases/2022/02/220208105222.htm //www.koonmotors.com/releases/2022/02/220207124653.htm Scientists have discovered a new fossil that reveals the origin of gills in arthropods. Mon, 07 Feb 2022 12:46:53 EST //www.koonmotors.com/releases/2022/02/220207124653.htm