//www.koonmotors.com/news/fossils_ruins/evolution/ Evolution. Read about natural selection in a flask and genetic variation in flowers. Consider the evolution of human social behavior, and more. en-us Sat, 09 Sep 2023 22:54:37 EDT Sat, 09 Sep 2023 22:54:37 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/fossils_ruins/evolution/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/09/230907130307.htm From the Middle Ages to the Enlightenment, 'monstrous births' -- malformed or anomalous fetuses -- were, to Western medicine, an object of superstition. In 19th-century America, they became instead an object of the 'modern scientific study of monstrosity,' a field formalized by French scientist Isidore Geoffroy Saint-Hilaire. This clinical turn was positioned against the backdrop of social, political, and economic activity that codified laws governing slavery, citizenship, immigration, family, wealth, and access to resources. Thu, 07 Sep 2023 13:03:07 EDT //www.koonmotors.com/releases/2023/09/230907130307.htm //www.koonmotors.com/releases/2023/09/230905202500.htm 研究人员报告说,灵活的肩膀和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/2023/09/230905125010.htm A new study has uncovered intriguing insights into the evolution of plant biology, effectively rewriting the history of how they evolved over the past billion years. Tue, 05 Sep 2023 12:50:10 EDT //www.koonmotors.com/releases/2023/09/230905125010.htm //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/2023/08/230830160828.htm Researchers generated large scale gene expression data to investigate the molecular networks that operate in one of the closest algal relatives of land plants, a humble single-celled alga called Mesotaenium endlicherianum. Wed, 30 Aug 2023 16:08:28 EDT //www.koonmotors.com/releases/2023/08/230830160828.htm //www.koonmotors.com/releases/2023/08/230829125929.htm Scientists use cutting edge scanning technology to reconstruct 'fossil monster' that lived half a billion years ago. The creature's soft anatomy was well-preserved, allowing it to be imaged almost completely: It fills a gap in our understanding of the evolution of arthropods such as insects and crustaceans. Tue, 29 Aug 2023 12:59:29 EDT //www.koonmotors.com/releases/2023/08/230829125929.htm //www.koonmotors.com/releases/2023/08/230823165407.htm New research suggests that natural selection, famous for rewarding advantageous differences in organisms, can also preserve similarities. The researchers worked with a plant called wild radish and its stamens, or pollen-producing parts, two of which are short and four are long. Roughly 55 million years ago, wild radish ancestors had stamens of equal length. The team selectively bred -- or artificially selected -- wild radish to reduce the difference in stamen length and return the plant to a more ancestral look. This shows that today's wild radish and, likely, its family members still have the requisite genetic variability to evolve, but natural selection is preserving its different stamen lengths. Wed, 23 Aug 2023 16:54:07 EDT //www.koonmotors.com/releases/2023/08/230823165407.htm //www.koonmotors.com/releases/2023/08/230817164019.htm An extremely rare collection of 160-million-year-old sea spider fossils from Southern France are closely related to living species, unlike older fossils of their kind. Thu, 17 Aug 2023 16:40:19 EDT //www.koonmotors.com/releases/2023/08/230817164019.htm //www.koonmotors.com/releases/2023/08/230816114103.htm A research team has used advanced sequencing technology to analyze Ötzi's genome to obtain a more accurate picture of the Iceman's appearance and genetic origins. Wed, 16 Aug 2023 11:41:03 EDT //www.koonmotors.com/releases/2023/08/230816114103.htm //www.koonmotors.com/releases/2023/08/230815131858.htm Biologists discovered that a scaffolding protein called TCOF1 is responsible for the formation of a biomolecular condensate called the fibrillar center, which forms within the cell nucleolus. Tue, 15 Aug 2023 13:18:58 EDT //www.koonmotors.com/releases/2023/08/230815131858.htm //www.koonmotors.com/releases/2023/08/230814122252.htm A new study shows that the cheek teeth of proboscideans (elephants and their ancient relatives) evolved in response to dietary changes due to vegetation changes and climate change in East Africa during the last 26 million years. Mon, 14 Aug 2023 12:22:52 EDT //www.koonmotors.com/releases/2023/08/230814122252.htm //www.koonmotors.com/releases/2023/08/230811115502.htm With 350 million years of evolution culminating in almost two centuries of scientific discourse, a new hypothesis emerges. Researchers propose a new explanation for why ammonoids evolved a highly elaborate, fractal-like geometry within their shells. Their analysis shows that the increasing complexity of shell structures provided a distinct advantage by offering improved protection against predators. Fri, 11 Aug 2023 11:55:02 EDT //www.koonmotors.com/releases/2023/08/230811115502.htm //www.koonmotors.com/releases/2023/08/230809130617.htm A 390-million-year-old moss called Takakia lives in some of Earth's most remote places, including the icy cliffs of the Tibetan Plateau. In a decade-long project, a team of scientists climbed some of the tallest peaks in the world to find Takakia, sequence its DNA for the first time, and study how climate change is impacting the moss. Their results show that Takakia is one of the fastest evolving species ever studied -- but it likely isn't evolving fast enough to survive climate change. Wed, 09 Aug 2023 13:06:17 EDT //www.koonmotors.com/releases/2023/08/230809130617.htm //www.koonmotors.com/releases/2023/08/230802162503.htm Researchers have sequenced the complete genome for einkorn wheat, the world's first domesticated crop and traced its evolutionary history. The information will help researchers identify genetic traits like tolerance to diseases, drought and heat, and re-introduce those traits to modern bread wheat. Wed, 02 Aug 2023 16:25:03 EDT //www.koonmotors.com/releases/2023/08/230802162503.htm //www.koonmotors.com/releases/2023/08/230801200756.htm Royal Ontario Museum announces the oldest swimming jellyfish in the fossil record with the newly named Burgessomedusa phasmiformis. This 505-million-year-old swimming jellyfish from the Burgess Shale highlights diversity in the Cambrian ecosystem. Tue, 01 Aug 2023 20:07:56 EDT //www.koonmotors.com/releases/2023/08/230801200756.htm //www.koonmotors.com/releases/2023/08/230801131650.htm An interdisciplinary team of mathematicians, engineers, physicists, and medical scientists has uncovered an unexpected link between pure mathematics and genetics, that reveals key insights into the structure of neutral mutations and the evolution of organisms. Tue, 01 Aug 2023 13:16:50 EDT //www.koonmotors.com/releases/2023/08/230801131650.htm //www.koonmotors.com/releases/2023/07/230731110258.htm The origin of bees is tens of millions of years older than most previous estimates, a new study shows. A team led by Washington State University researchers traced the bee genealogy back more than 120 million years to an ancient supercontinent, Gondwana, which included today's continents of Africa and South America. Mon, 31 Jul 2023 11:02:58 EDT //www.koonmotors.com/releases/2023/07/230731110258.htm //www.koonmotors.com/releases/2023/07/230727143913.htm 一个国际研究小组的语言学家和遗传学家has achieved a significant breakthrough in our understanding of the origins of Indo-European, a family of languages spoken by nearly half of the world's population. Thu, 27 Jul 2023 14:39:13 EDT //www.koonmotors.com/releases/2023/07/230727143913.htm //www.koonmotors.com/releases/2023/07/230726113005.htm Researchers have described a new species of armored reptile that lived near the time of the first appearance of dinosaurs. With bony plates on its backbone, this archosaur fossil reveals that armor was a boomerang trait in the story of dinosaur and pterosaur evolution: the group's ancestors were armored, but this characteristic was lost and then independently re-evolved multiple times later among specialized dinosaurs like ankylosaurs, stegosaurs, and others. Wed, 26 Jul 2023 11:30:05 EDT //www.koonmotors.com/releases/2023/07/230726113005.htm //www.koonmotors.com/releases/2023/07/230721113151.htm The genetic changes that made it possible for humans to walk upright have been uncovered in a study that also shows how slight variations in skeletal proportions are linked to arthritis. Fri, 21 Jul 2023 11:31:51 EDT //www.koonmotors.com/releases/2023/07/230721113151.htm //www.koonmotors.com/releases/2023/07/230720124855.htm 剑齿虎猫构成了形形色色的渴望othed predators that roamed Africa around 6-7 million years ago, around the time that hominins -- the group that includes modern humans -- began to evolve. By examining one of the largest global Pliocene collections of fossils in Langebaanweg, north of Cape Town in South Africa, researchers present two new sabertooth species and the first family tree of the region's ancient sabertooths. Their results suggest that the distribution of sabertooths throughout ancient Africa might have been different than previously assumed, and the study provides important information about Africa's paleoenvironment. Thu, 20 Jul 2023 12:48:55 EDT //www.koonmotors.com/releases/2023/07/230720124855.htm //www.koonmotors.com/releases/2023/07/230713142054.htm Butterflies and moths share 'blocks' of DNA dating back more than 200 million years, new research shows. Thu, 13 Jul 2023 14:20:54 EDT //www.koonmotors.com/releases/2023/07/230713142054.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/2023/07/230710180446.htm Research shows global cooling of the climate 10 million years ago led to an explosion of diversity in terrestrial orchids. Mon, 10 Jul 2023 18:04:46 EDT //www.koonmotors.com/releases/2023/07/230710180446.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/2023/06/230627123017.htm Scientists have been mystified as to why animals are missing in much of the fossil record. Researchers have now developed a new method to determine if animals really were absent during certain geological eras, or if they were present but too fragile to be preserved. Tue, 27 Jun 2023 12:30:17 EDT //www.koonmotors.com/releases/2023/06/230627123017.htm //www.koonmotors.com/releases/2023/06/230627123015.htm A Cretaceous origin for placental mammals, the 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/2023/06/230626164301.htm 5000万年前,在现在的西北Colorado, a katydid died, sank to the bottom of a lake and was quickly buried in fine sediments, where it remained until its compressed fossil was recovered in recent years. When researchers examined the fossil under a microscope, they saw that not only had many of the insect's hard structures been preserved in the compressed shale, so had several internal organs and tissues, which are not normally fossilized. Mon, 26 Jun 2023 16:43:01 EDT //www.koonmotors.com/releases/2023/06/230626164301.htm //www.koonmotors.com/releases/2023/06/230623161208.htm The Bachman's warbler, a songbird that was last seen in North America nearly 40 years ago, was a distinct species and not a hybrid of its two living sister species, according a new study in which the full genomes of seven museum specimens of the bird were sequenced. Fri, 23 Jun 2023 16:12:08 EDT //www.koonmotors.com/releases/2023/06/230623161208.htm //www.koonmotors.com/releases/2023/06/230622182815.htm According to a new study, eukaryotes -- complex life forms with nuclei in their cells, including all the world's plants, animals, insects and fungi -- trace their roots to a common Asgard archaean ancestor. That means eukaryotes are, in the parlance of evolutionary biologists, a 'well-nested clade' within Asgard archaea, similar to how birds are one of several groups within a larger group called dinosaurs, sharing a common ancestor. Thu, 22 Jun 2023 18:28:15 EDT //www.koonmotors.com/releases/2023/06/230622182815.htm //www.koonmotors.com/releases/2023/06/230622120850.htm The genome of a glass sponge species suggests that silica skeletons evolved independently in several groups of sponges. Thu, 22 Jun 2023 12:08:50 EDT //www.koonmotors.com/releases/2023/06/230622120850.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/2023/06/230619120145.htm In the age of dinosaurs, many marine reptiles had extremely long necks compared to reptiles today. While it was clearly a successful evolutionary strategy, paleontologists have long suspected that their long-necked bodies made them vulnerable to predators. Now, after almost 200 years of continued research, direct fossil evidence confirms this scenario for the first time in the most graphic way imaginable. Mon, 19 Jun 2023 12:01:45 EDT //www.koonmotors.com/releases/2023/06/230619120145.htm //www.koonmotors.com/releases/2023/06/230616161908.htm A 3D model of a 407-million-year-old plant fossil has overturned thinking on the evolution of leaves. The research has also led to fresh insights about spectacular patterns found in plants. Fri, 16 Jun 2023 16:19:08 EDT //www.koonmotors.com/releases/2023/06/230616161908.htm //www.koonmotors.com/releases/2023/06/230614220521.htm Many men in northern Europe over the age of 60 suffer from the so-called Viking disease, which means that the fingers lock in a bent position. Now researchers have used data from over 7,000 affected individuals to look for genetic risk factors for the disease. The findings show that three of the strongest risk factors are inherited from Neanderthals. Wed, 14 Jun 2023 22:05:21 EDT //www.koonmotors.com/releases/2023/06/230614220521.htm //www.koonmotors.com/releases/2023/06/230613190821.htm 混合植物和动物有复杂的基因组. A biologist has discovered a way to reveal their parent species. Tue, 13 Jun 2023 19:08:21 EDT //www.koonmotors.com/releases/2023/06/230613190821.htm //www.koonmotors.com/releases/2023/06/230613190754.htm Extinct kangaroos used alternative methods to their famous hop according to comprehensive analysis. Tue, 13 Jun 2023 19:07:54 EDT //www.koonmotors.com/releases/2023/06/230613190754.htm //www.koonmotors.com/releases/2023/06/230612114643.htm The earliest reptiles, birds and mammals may have borne live young, researchers have revealed. Mon, 12 Jun 2023 11:46:43 EDT //www.koonmotors.com/releases/2023/06/230612114643.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/2023/06/230607124112.htm Newly discovered biomarker signatures point to a whole range of previously unknown organisms that dominated complex life on Earth about a billion years ago. They differed from complex eukaryotic life as we know it, such as animals, plants and algae in their cell structure and likely metabolism, which was adapted to a world that had far less oxygen in the atmosphere than today. Wed, 07 Jun 2023 12:41:12 EDT //www.koonmotors.com/releases/2023/06/230607124112.htm //www.koonmotors.com/releases/2023/06/230605181213.htm Researchers show that an evolutionary change in the length of lizards' legs can have a significant impact on vegetation growth and spider populations on small islands in the Bahamas. This is one of the first times, the researchers say, that such dramatic evolution-to-environment effects have been documented in a natural setting. Mon, 05 Jun 2023 18:12:13 EDT //www.koonmotors.com/releases/2023/06/230605181213.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/2023/05/230530203036.htm A new study examined how bivalves -- the group that includes clams, mussels, scallops, and oysters -- evolved among many others in the period of rapid evolution known as the Cambrian Explosion. The team found that though many other lineages burst into action and quickly evolved a wide variety of forms and functions, the bivalves lagged behind. The study has implications for how we understand evolution and the impact of extinctions. Tue, 30 May 2023 20:30:36 EDT //www.koonmotors.com/releases/2023/05/230530203036.htm //www.koonmotors.com/releases/2023/05/230530125355.htm Researchers have identified three 4,000-year-old British cases of Yersinia pestis, the bacteria causing the plague -- the oldest evidence of the plague in Britain to date. Tue, 30 May 2023 12:53:55 EDT //www.koonmotors.com/releases/2023/05/230530125355.htm //www.koonmotors.com/releases/2023/05/230525141356.htm A new study of the freshwater greenfin darter fish suggests river erosion can be a driver of biodiversity in tectonically inactive regions. Thu, 25 May 2023 14:13:56 EDT //www.koonmotors.com/releases/2023/05/230525141356.htm //www.koonmotors.com/releases/2023/05/230524181858.htm Scientists have uncovered new clues about the origin of paired appendages -- a major evolutionary step that remains unresolved and highly debated. Wed, 24 May 2023 18:18:58 EDT //www.koonmotors.com/releases/2023/05/230524181858.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/2023/05/230518120907.htm Scientists have discovered a new species of mosasaur, a sea-dwelling lizard from the age of the dinosaurs, with strange, ridged teeth unlike those of any known reptile. Along with other recent finds from Africa, it suggests that mosasaurs and other marine reptiles were evolving rapidly up until 66 million years ago, when they were wiped out by an asteroid along with the dinosaurs and around 90% of all species on Earth. Thu, 18 May 2023 12:09:07 EDT //www.koonmotors.com/releases/2023/05/230518120907.htm //www.koonmotors.com/releases/2023/05/230518120111.htm Scales, spines, feathers and hair are examples of vertebrate skin appendages, which constitute a remarkably diverse group of micro-organs. Despite their natural multitude of forms, these appendages share early developmental processes at the embryonic stage. Researchers have discovered how to permanently transform the scales that normally cover the feet of chickens into feathers, by specifically modifying the expression of certain genes. Thu, 18 May 2023 12:01:11 EDT //www.koonmotors.com/releases/2023/05/230518120111.htm //www.koonmotors.com/releases/2023/05/230517122111.htm Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which living animals are the descendants of the earliest animals to evolve in the world's oceans? Scientists performed a detailed chromosomal analysis that comes down definitively in favor of comb jellies, or ctenophores, as the most recent common ancestor of all animals, or the sister taxa to all animals. Sponges evolved later. Wed, 17 May 2023 12:21:11 EDT //www.koonmotors.com/releases/2023/05/230517122111.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/2023/05/230516115538.htm Researchers investigated how the jaw shape of sharks has changed over the course of evolution. Their conclusion: in the most widespread shark species, the jaws show relatively little variation in shape over millions of years; most variable jaws were found for deep-sea sharks. Tue, 16 May 2023 11:55:38 EDT //www.koonmotors.com/releases/2023/05/230516115538.htm //www.koonmotors.com/releases/2023/05/230515131957.htm Scientists have discovered where butterflies originated and which plants the first butterflies relied on for food. To reach these conclusions, researchers created the world's largest butterfly tree of life, which they used as a guide to trace trace the evolution of butterflies through time in a four-dimensional puzzle that led back to North and Central America. Mon, 15 May 2023 13:19:57 EDT //www.koonmotors.com/releases/2023/05/230515131957.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/2023/05/230511164508.htm Throughout the ocean, billions upon billions of plant-like microbes make up an invisible floating forest. As they drift, the tiny organisms use sunlight to suck up carbon dioxide from the atmosphere. Collectively, these photosynthesizing plankton, or phytoplankton, absorb almost as much CO2 as the world’s terrestrial forests. A measurable fraction of their carbon-capturing muscle comes from Prochlorococcus — an emerald-tinged free-floater that is the most abundant phytoplankton in the oceans today. New research suggests the microbe's ancient coastal ancestors colonized the ocean by rafting out on chitin particles. Thu, 11 May 2023 16:45:08 EDT //www.koonmotors.com/releases/2023/05/230511164508.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/2023/05/230510120531.htm Over 3,000 generations of laboratory evolution, researchers watched as their model organism, 'snowflake yeast,' began to adapt as multicellular individuals. In new research, the team shows how snowflake yeast evolved to be physically stronger and more than 20,000 times larger than their ancestor. Their study is the first major report on the ongoing Multicellularity Long-Term Evolution Experiment (MuLTEE), which the team hopes to run for decades. Wed, 10 May 2023 12:05:31 EDT //www.koonmotors.com/releases/2023/05/230510120531.htm //www.koonmotors.com/releases/2023/05/230508104930.htm Humans inherited genetic material from Neanderthals 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/2023/05/230502132258.htm Researchers have proposed a new evolutionary model for the origin of a kingdom of viruses called Bamfordvirae, suggesting a billion-years evolutionary arms race between two groups within this kingdom and their hosts. Tue, 02 May 2023 13:22:58 EDT //www.koonmotors.com/releases/2023/05/230502132258.htm //www.koonmotors.com/releases/2023/05/230502132253.htm According to researchers, a new analysis of an 80-million-year-old permineralized pollen cone found in the Campanian Holz Shale formation located in Silverado Canyon, California, offers a more accurate cycad natural history -- one where the plants diversified during the Cretaceous. Tue, 02 May 2023 13:22:53 EDT //www.koonmotors.com/releases/2023/05/230502132253.htm