Articles tagged with Skull
A recent discovery of the greater white-toothed shrew in Ireland raises concerns about ecological impact and control. The introduction is believed to have occurred recently, with seven individuals trapped in four locations in Tipperary, marking a rare event for the country.
Researchers at Duke University have developed a new 3-D ultrasound technology that can see in real-time the arteries within the brain, improving stroke diagnosis and care. The technology uses advanced imaging techniques to compensate for the thickness and unevenness of the skull, allowing for faster and more accurate diagnoses.
A new minimally invasive surgery for craniosynostosis has been found to be just as effective in correcting the problem, with a quicker recovery time compared to the traditional procedure. The study followed 78 patients and showed promising results, including good facial features and successful neurological development.
A new imaging study of 3000 people found that women's skulls are thicker and more resistant to injury than men's, with average thicknesses of 7.1mm for females compared to 6.5mm for males.
Researchers used computer modeling to show Baryonyx's skull bent and stretched like a crocodile's while eating, revealing it was a fish-eater despite its dinosaur appearance. The discovery sheds light on the evolutionary history of this unusual creature.
A new species of massive carnivorous dinosaur, Carcharodontosaurus iguidensis, has been discovered in Niger, measuring up to 13-14 meters long and 1.75 meters skull length. The fossils provide insights into the ecosystems of Africa 95 million years ago and shed light on the evolution of these ancient creatures.
Researchers at John Hopkins University used human embryonic stem cells to develop bone tissue that heals large skull defects in mice. The study demonstrates a potential application of hESC-derived mesenchymal cells in musculoskeletal tissue regeneration.
Nigersaurus taqueti is a 110-million-year-old plant-eating dinosaur with a unique skull structure, featuring hundreds of needle-shaped teeth and a broad, straight-edged muzzle. Its distinctive anatomy allowed it to efficiently crop plants near the ground, making it an unusual example among sauropods.
Researchers at the University of Manchester examined St Bernard skulls over 120 years and found features that became more exaggerated as breeders selected for desired physical attributes. This suggests sustained evolutionary change under known selective pressures.
Researchers from the University of Utah and California's Raymond M. Alf Museum have unearthed a new duck-billed dinosaur species, Gryposaurus monumentensis, in Grand Staircase-Escalante National Monument. The creature is estimated to have grown up to 30 feet long as an adult and had over 300 teeth embedded in its thick skull.
Researchers use Finite Element Analysis to test the bite force and feeding mechanics of Smilodon, finding a relatively weak bite that limits its killing behaviors. Despite this, Smilodon was an efficient hunter of large game and could restrain prey before biting.
A fossilized whale skeleton found on California's Año Nuevo Island is the youngest and most complete known example of a whale fall in North America. The 11- to 15-million-year-old skeleton was home to multiple mollusks, challenging previous theories that large whales were necessary for these deep-sea communities to thrive.
The study confirms that modern humans originated from a single area in Sub-saharan Africa, with genetic diversity decreasing as populations migrated further away. The researchers found no evidence to support alternative non-African origins.
A research team has discovered a fundamental adaptive mechanism linking an animal's locomotion to its sensory systems. The study found that the dimensions of the three semicircular canals in the inner ear are linked to the type of movement produced by an animal's limbs.
The discovery of a pygmy-sized giant panda skull in south China reveals that the modern giant panda has remained largely unchanged for millions of years. The ancient species lived on bamboo shoots and was adapted to eating bamboo early in its development, highlighting its unique dietary specialization.
New York University study reveals Homo rudolfensis had a small brain and protruding jaw, similar to Australopithecus and Paranthropus. The 1.9 million-year-old skull's features contradict the long-held depiction of modern man's earliest direct ancestor as having a vertical facial profile and large brain.
Researchers discover a known mutation in the TGIF gene that causes Holoprosencephaly, a devastating brain disorder with lifelong effects. The study provides hope for detecting, preventing, and treating this rare condition through better understanding of fetal brain development.
A 36,000-year-old human skull from South Africa confirms the 'Out of Africa' theory of modern human origins. The fossil provides critical evidence that modern humans migrated out of sub-Saharan Africa around this time.
Researchers reevaluate human migration, proposing a new timeline for the spread of modern humans out of Africa. According to studies involving fossil analysis and genetic research, this migration likely took place between 40,000 and 60,000 years ago.
Dunkleosteus terrelli, a 400-million-year-old fish, had the strongest bite of any fish with a force of 1,100 pounds, rivaling that of large alligators and Tyrannosaurus rex. Its unique bladed dentition focused the bite force into a small area, while its ability to open its mouth quickly created a strong suction force.
A 3-year-old Australopithecus afarensis girl, discovered in Ethiopia, provides a unique window into human infancy. The fossil offers clues about skull morphology, brain growth, locomotion, and height, shedding light on early human evolution.
A new study found that ancient birds of prey like African crowned eagles likely feasted on some of our earliest human ancestors. The researchers analyzed over 600 bones from monkey skulls, which showed puncture marks and scratches consistent with the grip of an eagle's talons.
A team of international scientists has discovered a new African monkey genus, Rungwecebus kipunji, through collaborative research. The species, found in Tanzania's high-altitude forests, exhibits distinct physical characteristics and is closely related to baboons, highlighting the need for conservation efforts to protect its vulnerable...
A study analyzed MRIs of 24 patients with ischemic stroke to identify signs at increased risk for skull hemorrhaging. The researchers found that patients with parenchymal enhancement or hyperintense MCA sign may be at higher risk for developing hemorrhagic complications after tPA treatment.
A recent restudy and reconstruction of a Mongolian sauropod skull adds to evidence for sauropod diversity at the end of the dinosaur era. The discovery highlights the existence of titanosaurs, a late surviving sauropod lineage that flourished during this period.
Researchers developed guidelines for surgeons to assess whether patients are candidates for a sinus-saving modified Lothrop procedure. By analyzing CT scans and anatomy of seven cadavers, they identified critical measurements that determine the feasibility of the procedure.
A Royal Society study found that Antarctic fish can compensate for the initial negative impact of elevated temperatures and regain their original performance levels despite being several degrees warmer. The study suggests that rising temperatures do not necessarily have a long-term negative impact on biodiversity.
Researchers analyze brain case of 3-foot-tall Hobbit, finding few similarities to microcephalics and pygmies. The findings support the theory that the fossil is a member of a unique ancestral species, Homo floresiensis.
Researchers used MDCT to analyze the skeletal remains of early colonists, revealing evidence of scurvy and confirming the ages of the deceased. The study created a digital archive of the skulls and bones, providing valuable insights into the lives of those who settled on Saint Croix Island.
The discovery suggests that strong selection for running fueled the growth of the human brain by relaxing constraints on protein and fat acquisition. Running has substantially shaped human evolution, with features like detached shoulders, springy tendons, and well-defined buttocks emerging to enable efficient long-distance running.
Researchers used MDCT to create 3D images and reconstruct Harwa's face, revealing he was 45 years old at death. The technique allows for high-resolution reconstructions without damaging the mummy.
Researchers found Archeopteryx had a brain three times larger than crocodiles and similar to modern birds, supporting the theory of evolution. The study disproves the idea that some dinosaurs couldn't fly due to feathers.
Fossils of Rugops primus and Spinostropheus gautieri reveal that Africa separated from southern continents around 100 million years ago. The discoveries provide fresh evidence on the timing of continental drift, shedding light on how dinosaurs like Rugops and other animals used narrow land bridges to colonize adjacent continents.
The discovery of Suuwassea emilieae, a smaller relative of Diplodocus and Apatosaurus, provides significant insights into the fauna of the Morrison Formation. The new species features an anomalous second hole in its skull, which has puzzled paleontologists for years.
Researchers at Stanford Medicine have found that fat-derived cells can effectively heal skull defects in mice, outperforming bone marrow cells. The discovery holds promise for developing new treatments for bone fractures, joint replacements, and other skeletal conditions.
A recent study using computer imaging techniques reveals that Neanderthals exhibit distinct differences in skeletal morphology compared to modern humans. The research, led by NYU paleoanthropologist Katerina Harvati, suggests that Neanderthals are a separate species within the genus Homo.
A new primate fossil find in Asia has sparked debate about the origins of humans, with some scientists arguing that early primates were nocturnal. The fossil, Teilhardina asiatica, is smaller than modern primates and had sharp tooth cusps indicating an insect-eating diet.
A study using CT scans of two pterosaur skulls reveals key structures responsible for flight control and prey spotting were specialized and enlarged, revising views on vision, flight, and the brain's evolution. The research found significant differences between the vestibular apparatus and flocculus in the two species.
Researchers found Neandertals did not have long faces, but rather average or slightly reduced facial projection compared to earlier human ancestors. Modern humans' faces are significantly shorter due to evolutionary changes.
Researchers found that Noggin prevents premature skull fusion by keeping bone-promoting proteins apart. The discovery could lead to early diagnosis and treatment of infants at risk, offering a promising alternative to complex craniofacial surgery.
The newly revealed hieroglyphs at Dos Pilas shed new light on a critical period of Maya history, revealing a complex web of alliances and conflicts between Tikal and Calakmul. The inscriptions clarify the political and military relationships between these two superpower blocs, which dominated the region in the seventh century.
A new study reveals a small-brained Homo erectus individual from Georgia, raising questions about the role of brain size in human migration. The discovery, part of a rich fossil collection, suggests that other factors may have contributed to the ancestors' exit from Africa.
Researchers from Yale and University of Chicago discovered a 40-foot long Sarcosuchus imperator crocodile fossil, estimated to be the largest known so far. The fossil was found in Cretaceous rocks in central Niger and is believed to have lived for approximately 42 years before reaching adulthood.
Researchers have found fossil skulls and partial skeletons of the giant Sarcosuchus imperator, which lived during the African Cretaceous period. The species is estimated to have reached its full size in around 50-60 years, suggesting a unique growth pattern that allowed it to attain massive proportions.
A nearly complete long-necked sauropod dinosaur was recently unearthed in Madagascar, providing the first comprehensive view of a titanosaur skull. The discovery, announced by NSF-funded scientists, confirms a close relationship between titanosaurs and brachiosaurs, revolutionizing our understanding of Mesozoic reptiles.
A new web-based taxonomic key enables researchers to identify mammals by answering a series of questions with accompanying images. The key, developed in collaboration with the University of Dar es Salaam, uses over 170 identified species as a starting point.
Scientists have discovered a new fossil snake species, Haasiophis terrasanctus, with advanced anatomy similar to modern boas and pythons. The findings suggest that the evolution of limbs in snakes was more complex than previously thought, possibly representing an evolutionary reversal where advanced snakes regained hindlimbs.
The study confirms the complex origins of Native Americans by analyzing craniofacial measurements of old and new skulls from around the world. The results separate the native inhabitants of the Western Hemisphere into several different groups, including those descended from Asian groups such as the Jomon people of Japan.
Physicists at Lawrence Livermore National Laboratory are developing a control system that switches off a cutting laser when it detects phosphorus, allowing for quick and efficient fossil cleaning. This technique could significantly reduce the time-consuming process of preparing fossils by hand, especially for delicate or soft bones.
The fourth annual Skull Base Surgery Symposium will take place at Cedars-Sinai Medical Center from November 4-6, 1999. Renowned experts in the field of skull base surgery will share their knowledge on advanced technologies and procedures.
Physicians at Oregon Health Sciences University's Doernbecher Children's Hospital are pioneering the use of bone morphogenic protein (BMP) to grow new bone structures. Emily Lang, a 12-year-old girl with congenital deformities, is the first child to receive BMP treatment on existing bone, showing promising results.
Researchers at Cedars-Sinai Medical Center have developed a new endoscopic procedure to remove pituitary gland tumors, reducing trauma and complications. The technique has been refined after an initial animal study identified potential 'glitches' that were later addressed, resulting in improved outcomes for patients.
The discovery of Majungatholus atopus sheds new light on the dinosaur family Abelisauridae, which has been found only in South America and India. The fossil's unique structure suggests it was a top predator on Madagascar, feeding on sauropod dinosaurs.
A team of researchers has discovered a nearly complete skull of the large predatory dinosaur Majungatholus, which lived during the Late Cretaceous period. The fossil, found on the island of Madagascar, sheds light on the habits and characteristics of this enigmatic theropod dinosaur.
A team of researchers from Duke University found that the hypoglossal canal, which controls tongue movement, is larger in humans and Neanderthals than in apes and proto-humans. This discovery challenges the theory that human speech may not have arisen until around 40,000 years ago.
University of Notre Dame paleontologist J. Keith Rigby discovered the largest Tyrannosaur skeleton on record, but it was found to be seriously damaged by poachers on a northeastern Montana cattle ranch. The damage includes two-thirds of the left side of the skull missing and both lower jaws also destroyed.
The discovery of a 130-million-year-old fossilized bird hatchling provides significant insight into the early evolution of birds. The hatchling's primitive skull contains teeth, while its advanced features suggest that flight took precedence in early bird development.