Complex systems of microscopic tunnels found inside garnet crystals from Thailand are most likely the result of microorganisms making their homes inside these minerals, according to a study published Aug. 8, 2018, in the open-access journal PLOS ONE by Magnus Ivarsson of the University of Southern Denmark and colleagues.
The compounds behind the perfumes and colognes you enjoy have been eliciting olfactory excitement since dinosaurs walked the Earth amid the first appearance of flowering plants, new research reveals.
An international team of paleontologists and geoscientists has discovered the first North American co-occurrence of hadrosaur and therizinosaur tracks in the lower Cantwell Formation of Alaska's Denali National Park, providing more evidence that Alaska was possibly the 'superhighway' for dinosaurs between Asia and western North America 65-70 million years. A paper entitled 'An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska' is published in Scientific Reports.
A modern pygmy population living on an Indonesian island near a cave with Homo floresiensis ('hobbit') fossils appears to have evolved short stature independently, according to an international team of researchers. H. floresiensis was significantly smaller than the modern Flores pygmies, standing about 3.5 feet tall (shorter than the average kindergartener), while modern pygmies average about 15 inches taller. Floresiensis also differed from H. sapiens and H. erectus in their wrists and feet.
A study that examined the shape of hundreds of fossilized shark teeth suggests that modern shark biodiversity was triggered by the end-Cretaceous mass extinction event, about 66 million years ago.
A study conducted by the CEPAP-UAB at Cova de Santa Linya confirms a continuous presence of montane coniferous forests from the Pyrenees to the Mediterranean coast from 50,000 to 15,000 years ago, demonstrating their resilience to the extreme and ever changing climate conditions of the period.
Bacteria go extinct at substantial rates, although appear to avoid the mass extinctions that have hit larger forms of life on Earth, according to new research from the University of British Columbia (UBC), Caltech, and Lawrence Berkeley National Laboratory. The finding, published today in Nature Ecology and Evolution, contradicts widely held scientific thinking that microbe taxa, because of their very large populations, rarely die off.
Scientists at the University of Manchester and the University of Bristol have used powerful X-rays to peer inside the skeletons of some of our oldest vertebrate relatives, solving a 160-year-old mystery about the origin of our skeletons.
After more than 60 years, the bone of an iconic extinct Japanese mammal has been rediscovered by a team of researchers led by the University of Tsukuba. With the help of an old label and local knowledge, two equally possible sites in the town of Tsuchiyu Onsen were identified. The 'dinosaur' bone was discovered during construction of a debris dam and identified as the 15.9-million-year-old femur of Paleoparadoxia, a genus of marine mammals.
Until now, very little is known about the dietary evolution of the cave bear and how it became a vegetarian, as the fossils of the direct ancestor, the Deninger's bear (Ursus deningeri), are extremely scarce. However, a paper published in the journal Historical Biology, sheds new light on this.