A new species of large carnivore, Tartarocyon, has been discovered in the Pyrenees with a fossilized lower jaw weighing around 200 kg. The discovery provides insights into the development of European 'bear dogs' during the late Miocene period.
Researchers discovered a new spinosaurid dinosaur, 'White Rock spinosaurid', on the Isle of Wight, known for its impressive length and limited fossil material. The discovery supports previous findings that spinosaurids originated in western Europe.
A new species of large-bodied meat-eating dinosaur, an abelisaurid theropod, has been found in the Bahariya Oasis of Egypt's Western Desert. The discovery provides the first known record of this group from a middle Cretaceous-aged rock unit, and sheds light on the biodiversity of Cretaceous dinosaurs in Egypt and northeastern Africa.
A new discovery in China's Guangxi Zhuang Autonomous Region has found the oldest known mayfly swarm, dating back to the Early Jurassic period. The finding reveals complex mating-swarm behavior in stem-group mayflies, highlighting the underappreciated ecological significance of insects in ancient ecosystems.
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Researchers suggest that giraffes' unique head and neck morphologies were adapted for fierce head-butting behavior in competition for mates. The discovery of ancient fossils reveals a complex evolution driven by both food competition and sexual selection.
A new study by an international collaboration of researchers highlights the legacy of colonialism in scientific practice across the Caribbean archipelago. The authors outline systemic issues related to perceptions and scientific practice, but also describe positive steps being taken in countries like Trinidad and Tobago and The Bahamas.
Scientists have described a new species of therizinosaurid from Japan, shedding light on the function and evolution of their fearsome claws. The discovery indicates that therizinosaurs existed in Asia over a longer timescale than previously known and were adapted to coastal environments.
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A team of researchers has identified the ancient bird species behind giant prehistoric eggs in Australia, resolving a years-long debate. The study found that the eggs belonged to a unique duck-like line of megafauna known as the 'Demon Ducks of Doom', which was laid by the Genyornis newtoni bird.
A new study has found that most dinosaurs were warm-blooded, contrary to long-standing debate. By analyzing molecular waste in fossilized bones, researchers inferred dinosaur metabolic rates and found they were generally high.
Paleontologists have found the jaws of an Etruscan bear in a Crimean cave, dating back to 2-1.5 million years ago. The discovery suggests that early humans may have lived on the Crimean Peninsula around the same time.
Researchers discovered 'ghost' nannofossils in black shale deposits worldwide, revealing plankton were more resilient to past warming events than thought. These findings contradict previous interpretations of declines in nannoplankton fossils during global warming events.
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Researchers from Nagoya University found that Quetzalcoatlus was not suited for soaring flight due to its large wing loading. The study suggests that the Quetzalcoatlus's thermal soaring abilities were below those of modern birds, contrary to previous assumptions.
The study reveals that early animal communities exhibited complex ecological structures more than 550 million years ago, setting the stage for the Cambrian explosion. The analysis of metacommunity structure suggests competitive exclusion as the cause of the diversity drop in the late Ediacaran period.
Researchers have re-examined ancient fossil material from Brazil, revealing two distinct species: Maehary bonapartei and Faxinalipterus minimus. The discovery contradicts previous assumptions that Faxinalipterus was a flying reptile, instead confirming it as a primitive reptile.
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Paleontologists discovered sets of fossils representing three new ichthyosaurs, including the largest ichthyosaur tooth ever found. The discovery includes a 15-meter-long ichthyosaur and the largest trunk vertebra in Europe, rivaling the 21-meter long Shastasaurus sikkanniensis.
Neanderthals occupied a lightly wooded lakeshore about 90,000 years ago in a relatively temperate climate. Stone tools found at the former campsite attest to activities such as woodworking and plant processing.
A study has discovered that humans are disrupting a fundamental pattern in ecosystems, which dates back at least 66 million years. The U-shaped relationship between diet and size in modern land mammals has been found to span across multiple vertebrate groups, including birds, reptiles, and fish.
A new study has found that pterosaurs could change the color of their feathers using melanin pigments. The research is based on a 115-million-year-old fossilized headcrest of the Tupandactylus imperator pterosaur from north-eastern Brazil.
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The Linyi Lagerstätte, a new middle Cambrian fossil site in North China, has provided valuable insights into the evolution of animals during this period. The discovery has shed light on the morphological disparity and community structure of marine fauna following the Cambrian explosion.
Scientists have discovered two complete ichthyosaur specimens from the Solnhofen area, preserving outer body shape and skin. The fossils, dated to around 150 million years old, provide new insights into the anatomy of these marine reptiles.
A new large early ichthyosauromorph, Baisesaurus robustus, has been discovered in the Lower Triassic rocks of Zhebao, Guangxi Province, extending its geographic distribution. The fossil is estimated to be around 3m long and shares similarities with Utatsusaurus from Japan.
During the Paleocene, placental mammals first expanded their body sizes to occupy new ecological niches left behind by dinosaurs. Later, during the Eocene, brain size increased as enhanced cognition became more important in saturated ecosystems.
For the first 10 million years after dinosaurs died out, mammals bulked up to boost their survival chances. Their brain sizes decreased as a result, with relative brain sizes of early mammals decreasing due to increased body size.
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Paleontologist Kevin Padian suggests that T. rex's short arms evolved to prevent accidental or intentional amputation during pack feeding, a behavior thought to be common among the species. This hypothesis proposes that the reduced forelimbs provided an adaptive advantage by reducing the risk of injury during intense feeding interactions.
Researchers analyzed fossil collections from the Wonderwerk cave, discovering that barn owls remained a dominant predator throughout the Lower Palaeolithic era. The consistent presence of barn owl remains suggests reliable paleo-environmental results over nearly 2 million years.
A fossilized owl skeleton has been discovered in China's Tibetan Plateau, showcasing an extinct species that was active during the day. The study reveals that this ancient owl, Miosurnia diurna, was part of a group of owls that evolved to be diurnal.
A new study reveals that the giant camel Camelus knoblochi lived in Mongolia with anatomically modern humans until climate change led to its extinction. The species likely competed with its critically endangered relative, the Bactrian camel, for resources.
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Researchers found exceptionally preserved fossils from different locations, suggesting that rising global temperatures during the Early Jurassic period may have created favorable conditions for fossilization. The study suggests that past climate change could have enabled exceptional preservation in various environments.
A recent study reveals that Megalodon's body size was influenced by water temperature, with individuals growing larger in cooler waters. The research suggests that Bergmann's rule may have played a role in the shark's gigantism.
Researchers from China, Germany, France and Spain uncovered the lifestyle of humans living in East Asia 40,000 years ago. The study found evidence of ochre processing, miniature stone tools and bone tools, demonstrating technological innovations and cultural diversification.
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Researchers analyzed mollusk shells at 4,000-year-old shell ring villages in Georgia and found environmental changes drove the formation and abandonment of these coastal communities. Smaller oyster shells and lower salinity conditions suggested depletion in oyster stocks and unsustainable fishing practices.
Researchers discovered calcification and silicification of insects in Kachin amber, preserving complete compound eyes, cuticle structures, and skin sensillae. The study sheds light on the role of mineralization in preserving fossils and challenges existing views on amber taphonomy.
Researchers found physical differences in femur, dental structures across specimens suggesting re-categorization into three groups or species. Two new species, T. imperator and T. regina, are proposed based on analysis of 37 Tyrannosaurus specimens.
Researchers analyzed fossilized fish bones from the Tanis locality to reconstruct the latest Cretaceous seasonality. The study reveals that the catastrophic extinction occurred during northern-hemisphere spring and affected sensitive life stages of organisms, including dinosaurs.
The discovery of Balkanatolia reveals a unique fauna that enabled Asian mammals to colonize Western Europe 34 million years ago. A new fossil deposit in Turkey dated 38-35 million years ago supports this finding, shedding light on the evolution of mammals.
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Researchers identified two new species of ancient bird fossils found in northwestern China. One species, Brevidentavis zhangi, had small peg-like teeth and a movable bony appendage at the tip of its lower jaw that may have helped it root for food.
Researchers discovered abnormal bone growths in a 150-million-year-old diplodocid dinosaur, suggesting an avian-style respiratory infection. The infection likely caused symptoms like coughing, trouble breathing, and fever, potentially leading to the animal's death.
A young diplodocid dinosaur with abnormal bony protrusions in its neck bones may have suffered from a fungal respiratory infection similar to aspergillosis. The study provides the first evidence of an avian-style respiratory infection in a non-avian dinosaur.
A new study reveals that early echinoderm body shape evolution outpaced ecological innovation, contradicting long-standing expectations. The researchers found that morphological diversification occurred at a rate of 71% faster than ecological evolution during the Cambrian and Ordovician periods.
Researchers from Harvard University have confirmed a previously unknown species as the second opabiniid to be discovered, Utaurora comosa. The ancient arthropod shares characteristics with both radiodonts and Opabinia, highlighting the complexity of Cambrian evolution.
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A new study by DePaul University researchers has found that all previously proposed body forms of the Megalodon shark are based on speculations. The lack of scientific evidence means that the public image of a massive, monstrous shark remains unchanged, while paleontologists continue to search for clues in the fossil record.
A new study using a two-dimensional drawing technique has found no general patterns in the fin and body shapes of five warm-blooded Lamniformes species to determine Megalodon's shape. The research challenges previous conclusions about the extinct shark's body form, suggesting that warm bloodedness does not make sharks differently shaped.
Researchers found that low volcanic temperatures caused high sulfur dioxide emissions, leading to short-term cooling and contributing to the fourth mass extinction. The study suggests that this cooling enabled small-bodied dinosaurs to grow and prosper, ultimately thriving during the Jurassic period.
Researchers analyzed 23,000-year-old fisher-hunter-gatherer camp remains near the Sea of Galilee, finding a diverse diet and lifestyle that defies previous expectations. The site's abundance of animal bones reveals a robust subsistence strategy that utilized varied food sources.
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A study published in Scientific Reports uses fossilized mollusk shells to investigate ocean chemistry during the end-Permian mass extinction. The analysis found no signs of severe ocean acidification, contradicting previous theories.
Researchers have discovered the earliest known ant mimics in mid-Cretaceous Kachin amber, extending the geological range of myrmecomorphy by approximately 50 million years. The study found that these ancient organisms closely mimic different hymenopteran models during different stages of development.
A warmer Earth will see smaller fish species dominate ecosystems, mainly due to increased temperatures and decreased oxygen levels. This shift could have significant impacts on marine biodiversity and fisheries worldwide.
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Researchers have found exceptionally large ichthyosaur fossils, suggesting that these ocean giants evolved rapidly over just 1% of their 150-million-year history. The discovery hints at the presence of Triassic marine food webs capable of supporting massive creatures despite the Permian extinction
A 72-66-million-year-old dinosaur embryo discovered in a fossilized egg is found to have a bird-like posture, similar to modern bird embryos. The discovery suggests that these postures may be an evolutionary precursor to the tucking behavior seen in modern birds.
Researchers discovered a new simple mechanism of tooth class transformation in vertebrate lizards, affecting teeth size and attachment type. The EDA gene mutation led to significant changes in dental features, shedding light on tooth development in non-mammalian lineages.
A new UC Riverside-led study reveals that tiny microbes belching toxic gas helped cause and prolong the biggest mass extinction in Earth's history. The heat accelerated microbes' metabolisms, creating a deadly cycle of hydrogen sulfide production.
A massive fossil of the giant millipede Arthropleura has been discovered in Northumberland, England, revealing it was up to 2.7 meters long and weighed 50 kilograms. The find sheds new light on the animal's habitat and evolution, suggesting it preferred open woodland habitats near the coast.
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A new fossil discovery reveals an extinct early bird that could stick out its tongue, with a bony tongue nearly as long as its head. This finding provides insights into the evolution of feeding mechanisms in birds, highlighting the variation in skull shape and size among ancient species.
A team of researchers has uncovered a previously unrecognised process contributing to the disappearance of ancient megafauna communities across south-eastern Australia. Changing food supply driven by climatic changes or human land use in the Late Pleistocene era might have facilitated the extinction of the biggest herbivores.
New research on the world's largest pterosaur, Quetzalcoatlus, reveals that it likely leaped into the air before lifting off, using its wings to generate lift. The study, published by the Society of Vertebrate Paleontology, is the most comprehensive on the species yet and provides new insights into its flight mechanics.
A new study published in the journal Anatomical Record reveals that gharial species, native to India, suffer from nasal septal deviation, a condition common among humans. The researchers found that this deviated septum affects the breathing rate and may lead to high shearing stresses along the nasal walls.
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A new study in Scientific Reports reveals the first palaeontological site with multiple, exceptionally complete dinosaur skeletons from Italy. The Villaggio del Pescatore site in north-eastern Italy has yielded seven individuals of Tethyshadros insularis, the biggest and most complete dinosaur ever found in Italy.
A new marine reptile fossil from 130-million-year-old rocks in Colombia has revealed a unique dentition allowing it to eat large prey. The discovery clarifies the evolutionary tree of ichthyosaurs and tests new ideas on their evolution.
A groundbreaking analysis of the fossilized remains of Effigia, a 205-million-year-old herbivore, has cast doubt on the prevailing notion that it fed by pecking at plant material. Instead, researchers suggest that its unique beak and jaw structure would have allowed it to nibble at soft, vulnerable tissues like young shoots or ferns.
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The loss of large-bodied grazers worldwide drastically altered fire regimes, increasing grassy ecosystem fire activity. This finding highlights the need to incorporate herbivore controls into fire models to better understand and predict global fire activity.