Exquisitely preserved embryo found inside fossilized dinosaur egg
A 72- to 66-million-year-old embryo found inside a fossilized dinosaur egg sheds new light on the link between the behavior of modern birds and dinosaurs, according to a new study......»»
Early Human Ancestors Ate Each Other for Food, Fossil Leg Bone Suggests
A fossilized hominin leg shows gashes that were probably made by stone tools.....»»
Newly identified theropod dinosaur had strange hands
A team of archaeologists and paleontologists affiliated with several institutions in China, working with a colleague from Italy, has identified a new species of theropod dinosaur with strange hand features. In their paper published in the journal Cre.....»»
Many Newly Discovered Species Are Already Gone
Scientists are uncovering previously unknown species preserved in museum and botanical garden collections, only to find that they no longer exist in the wild......»»
Scientists discover new embryonic cell type that self-destructs to protect the developing embryo
Scientists studying gene activity data of the early human embryo have discovered an overlooked type of cell that self-destructs within days of forming, as part of a quality control process to protect the developing fetus. The findings give insights o.....»»
Researchers use stem cell zoo to compare six mammalian species and their developmental time
In humans, pregnancy lasts around nine months. In mice, only 20 days, and in rhinoceroses, as long as 17 months. Although many mammalian species go through the same stages during embryo development, the speed of development differs substantially acro.....»»
Lab-grown human embryo models spark calls for regulation
Scientists have used stem cells to create structures that resemble human embryos in the lab, in a first that has prompted calls for stricter regulation in the rapidly advancing field......»»
China"s Yanliao Biota offers a new window into mammal evolution since the Triassic
China's Yanliao Biota, an assembly of fossils preserved in northeastern China dating from the Middle to Late Jurassic (174 to 145 million years ago), offers an important window into the evolution of vertebrates. With exceptional preservation of insec.....»»
Remains of new species of duck-billed dinosaur found in Chile
Remains of a species of herbivorous dinosaur previously unknown in the southern hemisphere have been discovered in Chile, challenging long-held beliefs about the range of duck-billed dinosaurs, scientists said Friday......»»
German archaeologists find Bronze Age sword so well-preserved it "almost shines"
A bronze sword made more than 3,000 years ago that is so well-preserved it "almost still shines" has been unearthed in Germany, officials say......»»
New armored dinosaur named for museum professor
A new armored dinosaur, known as an ankylosaur, has been described and named for Prof Paul Barrett of the Natural History Museum......»»
Fossil reveals smallest sauropodomorph dinosaur from the Jurassic
A tiny relative of titanosaurs has been uncovered in South Africa......»»
Germany returns "stolen" dinosaur fossil to Brazil
A fossil from a rare dinosaur that roamed South America 110 million years ago has been returned to Brazil from Germany, ending a diplomatic spat triggered by charges that researchers stole it......»»
Heat-stressed fish embryos can induce stress in nearby embryos
Heat-stressed fish embryos release chemical signals that change the appearance, behavior, and development of fish embryos that were not heat stressed, according to a study. Stress during development can change how an embryo grows and which genes are.....»»
Newly described species of dome-headed dinosaur may have sported bristly headgear
If you look at enough dinosaur fossils, you'll see that their skulls sport an amazing variety of bony ornaments, ranging from the horns of Triceratops and the mohawk-like crests of hadrosaurs to the bumps and knobs covering the head of Tyrannosaurus.....»»
Fossil fragments shed light on a new spinosaurid dinosaur found in Spain
A dinosaur specimen from Castellón, Spain represents a new proposed species of spinosaurid, reports a paper published in Scientific Reports. The identification of a potential new species suggests that the Iberian peninsula may have been a diverse ar.....»»
A predatory dinosaur from Brazil and its surprising anatomy
Irritator challengeri was a two-legged, meat-eating dinosaur, or more precisely—a spinosaurid. The knowledge of the species is based on the most complete fossil skull known from this group. With the aid of X-ray computed tomographs usually used in.....»»
“Smoke archaeology” reveals early humans were visiting Nerja Caves 41,000 years ago
Interdisciplinary study analyzed fossilized soot and charcoal from lighting sources. Enlarge / María Medina of the University of Cordoba working in the Navarro Cave, Malaga, Spain. (credit: University of Cordoba) For ov.....»»
Researchers generate cattle blastoids in lab to aid farm animal reproduction
UT Southwestern Medical Center stem cell and developmental biologists and colleagues have developed a method to produce bovine blastoids, a crucial step in replicating embryo formation in the lab that could lead to the development of new reproductive.....»»
How cells are influenced by their environment as tissues grow
How does an embryo develop? How do children grow, wounds heal or cancer spread? All of this has to do with the growth of body tissue. One of the major research interests of ETH Professor Viola Vogel and her senior assistant Mario C. Benn is to unders.....»»
Fossil find in California shakes up the natural history of cycad plants
Cycads, a group of gymnosperms which can resemble miniature palm trees (like the popular sago palm houseplant) were long thought to be "living fossils," a group that had evolved minimally since the time of the dinosaurs. Now, a well-preserved 80-mill.....»»