Showing 20 articles starting at article 461
< Previous 20 articles Next 20 articles >
Categories: Offbeat: Paleontology and Archeology, Paleontology: Fossils
Published Ancient grammatical puzzle solved after 2,500 years


A grammatical problem which has defeated Sanskrit scholars since the 5th Century BC has finally been solved by a PhD student.
Published Early humans may have first walked upright in the trees


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.
Published Fossil site reveals giant arthropods dominated the seas 470 million years ago


Discoveries at a major new fossil site in Morocco suggest giant arthropods -- relatives of modern creatures including shrimps, insects and spiders -- dominated the seas 470 million years ago.
Published Precise solar observations fed millions in ancient Mexico


Without clocks or modern tools, ancient Mexicans watched the sun to maintain a farming calendar that precisely tracked seasons and even adjusted for leap years.
Published Extinct 'monkey lemur' shows similarities to fossil humans


Analysis of teeth of extinct lemurs has revealed fascinating clues to the evolution of humans, a new study has found.
Published True giant wombat gives Diprotodon podium a wobble


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.
Published Dinosaur teeth reveal what they didn't eat


Scratches on dinosaur teeth could reveal what they really ate. Dental microwear texture analysis (DMTA) has now been used to infer the feeding habits of large theropods, including Allosaurus and T. rex. By taking 3D images of individual teeth and analyzing the pattern of marks scratched into them, researchers could reason which dinosaurs may have frequently crunched on hard bone and which may have regularly eaten softer foods and prey. This technique opens up a new avenue of research for paleontology, helping us to better understand not only dinosaurs themselves but also the environment and communities in which they lived.
Published Immune system of modern Papuans shaped by DNA from ancient Denisovans, study finds


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.
Published Smilodon's sabre teeth



Researchers have tested the biting efficiency of Smilodon, 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.
Published Discovery of world's oldest DNA breaks record by one million years


Two-million-year-old DNA has been identified -- opening a 'game-changing' new chapter in the history of evolution. Microscopic fragments of environmental DNA were found in Ice Age sediment in northern Greenland. Using cutting-edge technology, researchers discovered the fragments are one million years older than the previous record for DNA sampled from a Siberian mammoth bone. The ancient DNA has been used to map a two-million-year-old ecosystem which weathered extreme climate change.
Published New branch on tree of life includes 'lions of the microbial world'



There's a new branch on the tree of life and it's made up of predators that nibble their prey to death. These microbial predators fall into two groups, one of which researchers have dubbed 'nibblerids' because they, well, nibble chunks off their prey using tooth-like structures. The other group, nebulids, eat their prey whole. And both comprise a new ancient branch on the tree of life called 'Provora,' according to a new article.
Published Dinosaurs were on the up before asteroid downfall


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.
Published Meteorites plus gamma rays could have given Earth the building blocks for life


Even as detailed images of distant galaxies from the James Webb Space Telescope show us more of the greater universe, scientists still disagree about how life began here on Earth. One hypothesis is that meteorites delivered amino acids -- life's building blocks -- to our planet. Now, researchers have experimentally shown that amino acids could have formed in these early meteorites from reactions driven by gamma rays produced inside the space rocks.
Published Ancient amphibians had their bones cooked


Scientists have solved a decades-long mystery as to why ancient tetrapods -- amphibian-like creatures that lived over 300 million years ago -- preserved in one of Ireland's most important fossil sites seemingly had their bones cooked after they died.
Published Ankylosaurs battled each other as much as they fought off T. rex


Scientists have found new evidence for how armored dinosaurs used their iconic tail clubs. The exceptional fossil of the ankylosaur Zuul crurivastator has spikes along its flanks that were broken and re-healed while the dinosaur was alive -- injuries that the scientists think were caused from a strike by another Zuul's massive tail club. This suggests ankylosaurs had complex behavior, possibly battling for social and territorial dominance or even engaging in a 'rutting' season for mates.
Published Megadrought: How the current Southwestern North American megadrought is affecting Earth's upper atmosphere


New research, based on two decades' worth of data, shows that in the ten years after its onset in 2000, the Southwestern North American (SWNA) megadrought caused a 30% change in gravity wave activity in Earth's upper atmosphere.
Published Jawbone may represent earliest presence of humans in Europe


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.
Published Fossil discovery in storeroom cupboard shifts origin of modern lizard back 35 million years


A specimen retrieved from a cupboard of the Natural History Museum in London has shown that modern lizards originated in the Late Triassic and not the Middle Jurassic as previously thought.
Published Lost medieval chapel sheds light on royal burials at Westminster Abbey, finds new study featuring 15th-century reconstruction


New evidence, helping to form a 15th-century reconstruction of part of Westminster Abbey, demonstrates how a section of the building was once the focus for the royal family's devotion to the cult of a disemboweled saint and likely contained gruesome images of his martyrdom.
Published Ancient DNA from medieval Germany tells the origin story of Ashkenazi Jews


Extracting ancient DNA from teeth, an international group of scientists peered into the lives of a once-thriving medieval Ashkenazi Jewish community in Erfurt, Germany. The findings show that the Erfurt Jewish community was more genetically diverse than modern day Ashkenazi Jews.