Testosterone in tusks: Hormones in mammoth fossils excite paleontologists
The technique could allow us to link mammoth health and nutrition to mating. Enlarge / Mammoth tusks collected at Wrangel Island, where some of the samples tested for hormones originated. (credit: Alexei Tikhonov) Musth,.....»»
ASUS AirVision M1 glasses won’t excite anyone interested in Vision Pro
We’re seeing a succession of companies announce headset or glasses products at CES 2024, with the ASUS AirVision M1 glasses the latest of these. So far, none of the three companies to announce have sought to take on Vision Pro with a truly compa.....»»
Coal miners in North Dakota unearth a mammoth tusk buried for thousands of years
The first person to spot it was a shovel operator working the overnight shift, eyeing a glint of white as he scooped up a giant mound of dirt and dropped it into a dump truck......»»
Fossil birds: Surfaces of cervical vertebrae show conspicuous tubercles that may have served as "internal bony armor"
An international research team has examined unusual skeletal structures of various European bird fossils from the Eocene. The bone surfaces of the approximately 40- to 50-million-year-old cervical vertebrae show conspicuous tubercles, whose origin as.....»»
Fossil evidence of photosynthesis gets a billion years older
Remains of cells from two sites show structures similar to those in present cells. Enlarge / At left, one of the fossils, with stacks of thylakoids highlighted using yellow bars; at right, a higher magnification of the end of the.....»»
"Giant" predator worms more than half a billion years old discovered in North Greenland
Fossils of a new group of animal predators have been located in the Early Cambrian Sirius Passet fossil locality in North Greenland. These large worms may be some of the earliest carnivorous animals to have colonized the water column more than 518 mi.....»»
New research shows "juvenile" T. rex fossils are a distinct species of small tyrannosaur
A new analysis of fossils believed to be juveniles of T. rex now shows they were adults of a small tyrannosaur, with narrower jaws, longer legs, and bigger arms than T. rex. The species, Nanotyrannus lancensis, was first named decades ago but later r.....»»
3D preservation of trilobite soft tissues sheds light on convergent evolution of defensive enrollment
They'd been in the collections of the Harvard Museum of Comparative Zoology (MCZ) since the 1870s when they were first discovered. Nestled in among the largest collection of trilobites, the unique fossils rested in drawers until 145 years later when.....»»
Mysterious fruit found to be the oldest known fossils of the Frankincense and Myrrh family
Early in the 1970s, a paleontologist working on the outskirts of an Indian village found small, bead-like fossils embedded in the gray chert dotting the surrounding fields. The site was notorious for turning up plant fossils that were difficult to id.....»»
Better fossil dating could help to clear up human evolution
Timing is crucial when it comes to understanding the origins of humanity. Developing better dating techniques to discover the ages of key fossils will help scientists to discover how Homo sapiens and our relatives evolved......»»
Mammoth 2 marches onto iOS with curated Mastodon Smart Lists, For You timeline, more
Mammoth is making no bones about it. The Mastodon client for iPhone strives to be good enough to viably replace Twitter/X. Mammoth 2 is taking on the challenge with curated Smart Lists with content to follow based on category, a For You timeline, and.....»»
Molecular fossils study sheds light on feeding strategy shift in ancient life
Paleontologists are getting a glimpse at life over a billion years in the past based on chemical traces in ancient rocks and the genetics of living animals. Research published in Nature Communications combines geology and genetics, showing how change.....»»
It turns out, this plant fossil is really a baby turtle fossil
From the 1950s to the 1970s, a Colombian priest named Padre Gustavo Huertas collected rocks and fossils near a town called Villa de Levya. Two of the specimens he found were small, round rocks patterned with lines that looked like leaves; he classifi.....»»
Fossil unearthed in Mongolia"s Gobi Desert suggests some dinosaurs slept in same position as modern birds
A team of paleontologists and biologists from Hokkaido University, Hokkaido University Museum, North Carolina State University and the Mongolian Academy of Sciences, has uncovered a previously unknown species of dinosaur that appears to have slept in.....»»
New fossil assemblage highlights complexity of classifying silesaurid phylogeny
A set of fossils recovered in Rio Grande do Sul, Brazil's southernmost state, has brought an extra layer of complexity to the study of the evolutionary history of silesaurids, a family of dinosauriforms (dinosaurs and their close relatives) that live.....»»
Progress in Starship test launch, but ship and booster explode
SpaceX on Saturday made progress in the second test launch of its mammoth Starship rocket, with the booster separating from the spaceship, but both then exploding shortly after over the ocean......»»
Feathery moa"s fossilized footprints, ancient age revealed
Cosmogenic nuclide dating, a method commonly used in dating coastal areas and alluvial riverbeds for landscape reconstruction, is also useful for calculating the age of trace fossils, such as a footprint, where no remains of the animal are preserved......»»
Astronomers discover how tiny dwarf galaxies form ‘fossils’
When tiny dwarf galaxies age and begin to erode away, they can transform into an even smaller and more dense shape, called an ultra-compact dwarf galaxy......»»
Cultural artifacts serve as "cognitive fossils," helping uncover the psychology of the past
No two societies in history think exactly alike. In fact, the mindset of a given society throughout history can help historians unpack important clues about the effects of psychological shifts—such as more social trust or more openness......»»
A new trail to exoplanets: Team successfully detects ammonia isotopologues in atmosphere of cold brown dwarf
They reveal the origin of wine, the age of bones and fossils, and they serve as diagnostic tools in medicine. Isotopes and isotopologues—molecules that differ only in the composition of their isotopes—also play an increasingly important role in a.....»»
The last turn of "Ezekiel"s Wheel" honors a fossil hunter
The mystery of Ezekiel's Wheel—the extinct sea creature, not the Biblical vision—may have taken its final turn, thanks to Yale paleontologists. In so doing, the researchers have also finally put a scientific name to the favorite fossil of a belov.....»»