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......»»
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......»»
Genes are switched on in the human embryo from the get-go
The finding that some genes are active from the get-go challenges the textbook view that genes don't become active in human embryos until they are made up of four-to-eight cells, two or three days after fertilization......»»
An ancient relative of Velociraptor is unearthed in Great Britain
A previously unknown bird-like dinosaur that used brute strength to overcome its prey has been found by paleontologists combing through fossils found on the Isle of Wight. It dates back to the Early Cretaceous, over 100 million years ago......»»
Air bubbles in Antarctic ice point to a cause of oxygen decline
An unknown culprit has been removing oxygen from our atmosphere for at least 800,000 years, and an analysis of air bubbles preserved in Antarctic ice for up to 1.5 million years has revealed the likely suspect......»»
Theropod dinosaur jaws became stronger as they evolved, study finds
Theropod dinosaurs evolved more robust jaws through time allowing them to consume tougher food, a new study reveals......»»
Saving the shuttle simulator—“It was an artifact that needed to be preserved”
"We hope to have it in place at the museum in April." Enlarge / The cockpit of the restored space shuttle motion simulator. (credit: Carl Brainerd) Every NASA astronaut who ever rode aboard the space shuttle, more than 350 of.....»»
Parrot thought to be extinct rediscovered 100 years ago. What came next is a tragedy we must not repeat
Exactly 100 years ago tomorrow, a bird that had been relegated to extinction made a comeback. The exquisitely beautiful paradise parrot was rediscovered by Cyril Jerrard, a grazier from Gayndah in Queensland's Burnett district, on December 11, 1921......»»
Dinosaur faces and feet may have popped with color
Most birds aren't as colorful as parrots or peacocks. But if you look beyond the feathers, bright colors on birds aren't hard to find: Think pink pigeon feet, red rooster combs and yellow pelican pouches......»»
Embryonic cells sense stiffness in order to form the face
Cells in the developing embryo can sense the stiffness of other cells around them, which is key to them moving together to form the face and skull, finds a new study by UCL researchers......»»
Zebra finches alter song to eggs during hot periods to repress heat production in embryo cells
A team of researchers from Deakin University in Australia and Clemson University in the U.S. has found that female finches change the song they sing to their eggs when temperatures rise. This results in hatchling mitochondria producing more ATP and l.....»»
Dinosaur tail found in Chile stuns scientists
Chilean paleontologists on Wednesday presented their findings on a dinosaur discovered three years ago in Patagonia which they said had a highly unusual tail that has stumped researchers.....»»
Fossils dug up 100 years ago rediscovered wrapped in old newspaper
A stash of rediscovered dinosaur bones wrapped in century-old newspapers is set to reveal two pasts: one set in the 1920s and the University of Alberta's earliest paleontology, the other some 70 million years ago......»»
Scientists use stem cells to create models of pre-embryos
Scientists are using human stem cells to create a structure that mimics a pre-embryo and can serve as a research alternative to a real one......»»
A dinosaur trove in Italy rewrites the history, geography and evolution of the ancient Mediterranean area
Italy is not exactly renowned for dinosaurs. In comparison to its excellent artistic and archaeological heritage, dinosaur fossils are very rare. Not surprisingly, the discovery of the first isolated dinosaurs in the early 1990s generated excitement,.....»»
New dinosaur species from Chile had a unique slashing tail
Fossils found in Chile are from a strange-looking dog-sized dinosaur species that had a unique slashing tail weapon, scientists reported Wednesday......»»
CT uncovers bone disease in Tyrannosaurus rex jaw
Researchers in Germany identified bone disease in the fossilized jaw of a Tyrannosaurus rex using a CT-based, nondestructive imaging approach, according to a study being presented today at the annual meeting of the Radiological Society of North Ameri.....»»
Bringing 400-million-year-old fossilized armored worms to "virtual" life
An international team of scientists from the United States and Australia, led by Sarah Jacquet at the University of Missouri, has documented the discovery of two new species of fossilized armored worms in Australia—Lepidocoleus caliburnus and Lepid.....»»
Extinct swordfish-shaped marine reptile discovered
A team of international researchers from Canada, Colombia, and Germany has discovered a new marine reptile. The specimen, a stunningly preserved meter-long skull, is one of the last surviving ichthyosaurs—ancient animals that look eerily like livin.....»»
How Foundation preserved Asimov’s big ideas while bringing the story to vivid life
Ars chats with showrunner David S. Goyer and science advisor Kevin Hand Enlarge / The only constant is change in Apple TV's adaptation of Isaac Asimov's Foundation (credit: YouTube/Apple TV+) When showrunner David S. Goyer too.....»»
Preserved baby Neanderthal milk tooth shows earlier emergence than in humans
An international team of researchers studying a recovered Neanderthal milk tooth has found evidence of baby teeth growing faster and emerging earlier in the extinct human species than in modern humans. In their paper published in Proceedings of the R.....»»