Well-Preserved Embryo Found Inside Fossilized Dinosaur Egg
A rare look inside a fossilized dinosaur egg found in southern China has revealed an exquisitely preserved embryo -- and evidence suggesting that some of these prehistoric creatures had even more in common with modern birds than previously thought. F.....»»
Fossil teeth reveal how brains developed in utero over millions of years of human evolution
Fossilized bones help tell the story of what human beings and our predecessors were doing hundreds of thousands of years ago. But how can you learn about important parts of our ancestors' life cycle—like pregnancy or gestation—that leave no obvio.....»»
Researchers look a dinosaur in its remarkably preserved face
Washed out to sea, a giant beast and its armored skin were left in pristine condition. Enlarge (credit: Royal Tyrrell Museum of Palaeontology) Borealopelta mitchelli found its way back into the sunlight in 2017, millions.....»»
Where to watch Jurassic World Dominion
In the mood for some dinosaur action? Find out where to watch Jurassic World Dominion, the third and final film in the Jurassic World trilogy......»»
Researchers derive a unified topological speed limit for the evolution of physical states
Physical systems evolve at a particular speed, which depends on various factors including the system's so-called topological structure (i.e., spatial properties that are preserved over time despite any physical changes that occur). Existing methods f.....»»
Rare fossilized feathers reveal secrets of paleontology hotspot during Cretaceous period
The site of Jehol Biota in China is famous for stunning fossils which preserve soft tissue—skin, organs, feathers, and fur. These fossils offer rare insights into the evolution of characteristics like flight, but they need careful interpretation to.....»»
Fossils reveal prehistoric Patagonian dinosaurs
A study led by The University of Texas at Austin is providing a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, just before the non-avian dinosaurs went extinct......»»
Four dinosaur species found in Chilean valley for first time: study
Scientists have found the remains of four species of dinosaurs, including a megaraptor, in an inhospitable valley in Chilean Patagonia that has emerged over the past decade as an important fossil deposit, researchers said Wednesday......»»
Sunscreen-like chemicals found in fossil plants reveal UV radiation was involved in mass extinction events
New research has uncovered that pollen preserved in 250 million year old rocks contain compounds that function like sunscreen, these are produced by plants to protect them from harmful ultraviolet (UV-B) radiation. The findings suggests that a pulse.....»»
There’s more than one way to mummify a dinosaur, study finds
Exceptionally preserved duck-billed hadrosaur had bite marks and gashes in its skin. Enlarge / Full-color life reconstruction of Edmontosaurus. (credit: Natee Puttapipat/CC-BY 4.0 ) There's rarely time to write about.....»»
Stem cell model allows researchers to explore the earliest stages of sex determination in mice and humans
During embryonic development, two different cascades of genetic signals determine whether the embryo's primordial gonad will become testes or ovaries, and thus whether the embryo will develop into a male or a female. Disruptions in this process cause.....»»
Bile acid improves intrauterine growth retardation metabolism in piglets
Intrauterine growth retardation (IUGR), defined as the impaired growth and development of a mammalian embryo/fetus or fetal organs during pregnancy, is a major concern in pig farming. IUGR animals exhibit impaired growth and development, lower meat q.....»»
New fossil foot analysis reveals the surprising and varied lifestyles of dinosaur bird ancestors
Have you ever eaten chicken feet? If you haven't, you might be surprised to learn there's actually quite a bit of flesh down there. And scales too! They're wonderful—and informative—pieces of engineering......»»
Mold Pigs, a Hairy Snail and Other Cool Things Trapped in Amber - CNET
From a freaky long-toed bird to an ancient tardigrade, sticky tree resin has preserved a fascinating history of flora and fauna......»»
First evidence found of a dinosaur eating a mammal
An international team of researchers has found the first evidence of a dinosaur eating a mammal. In their paper published in Journal of Vertebrate Paleontology, the group describes their reexamination of a fossil found more than 20 years ago......»»
Island dwarves and inner ears: Long-necked dinosaur from Germany was probably precocial
Recently, scientists from the universities of Greifswald and Vienna examined skull remains of Europasaurus with high-resolution computer tomography scans. The little giant has been the ideal candidate for the researchers to investigate, since there a.....»»
Linking fossil climate proxies to living bacteria helps climate predictions
Microbes have skins that react to the environment, much in the same way that our skin sweats when it is hot, or shivers when it is cold outside. Fossilized microbial skins can give us a glimpse of how the climate was in the deep geological past. By d.....»»
Diplodocus may have been one cool dinosaur—thanks to its skin
A skin of porous scales may have helped keep dinosaurs' metabolism from overheating. Enlarge / Diplodocus dinosaur scene from the Jurassic era 3D illustration (credit: Warpaintcobra) Finding any fossil skin is extraordin.....»»
An experimental strategy for recreating organ formation in the lab
RIKEN researchers have imitated the formation of organs in the lab by "hacking" certain signaling pathways that guide the development of connective tissues in the embryo, which support the formation of the liver, gut and other organs. In addition to.....»»
Researchers recreate periodic structure of spine development without biological clocks
One of the most dramatic phases of fetal development occurs as previously unstructured collections of rapidly dividing precursor cells begin forming the embryo's spine......»»
Dinosaur teeth reveal what they didn"t eat
Scratches on dinosaur teeth could reveal what they really ate. For the first time, dental microwear texture analysis (DMTA) has been used to infer the feeding habits of large theropods, including Allosaurus and T. rex......»»