Frozen mammoth skin retained its chromosome structure
Features as small as 50 nanometers preserved in a 50,000-year-old sample. Enlarge (credit: LEONELLO CALVETTI/SCIENCE PHOTO LIBRARY) One of the challenges of working with ancient DNA samples is that damage accumulates ove.....»»
The "Fall of the House of Usher" Trump burn you may have missed
Netflix's "The Fall of the House of Usher" contained a brief Donald Trump burn in the finale. Here's what happened. As complex as the titular family's structure, The Fall of the House of Usher has a lot going on in it – plenty of veiled r.....»»
Medical imaging struggles to read dark skin. Researchers say they"ve found a way to make it easier
Traditional medical imaging -- used to diagnose, monitor or treat certain medical conditions -- has long struggled to get clear pictures of patients with dark skin, according to experts......»»
Scientists count huge melts in many protective Antarctic ice shelves. Trillions of tons of ice lost.
Four dozen Antarctic ice shelves have shrunk by at least 30% since 1997 and 28 of those have lost more than half of their ice in that time, reports a new study that surveyed these crucial "gatekeepers'' between the frozen continent's massive glaciers.....»»
Boom in "ice ivory" trade of mammoth tusks presents new threat to elephants and environment
Conservationists fear a rise in the buying and selling of mammoth tusks, known as the "ice ivory" trade, poses a new threat to elephants......»»
Paint that can change colors? The skin of an octopus holds the key, researchers say
When you think of an octopus, you might be envious of its eight limbs. After all, there's a lot to be done with eight arms. But scientists are a bit more interested in something else: its skin......»»
Incomplete car purchases canceled as Shift Technologies goes out of business, files bankruptcy
Shift Technologies terminated 120 employees last week ahead of its Chapter 11 filing and retained 24 employees to facilitate Shift's wind-down of operations, according to a court filing......»»
Discovery of half-million-year-old wooden structure shows we"re wrong to underestimate our ancient relatives
To most people, complex technologies separate modern humans from their ancestors who lived in the Stone Age, thousands or hundreds of thousands of years ago. In today's fast changing world, older technologies, even those from a few years ago, are oft.....»»
Meta-learning helps to estimate oceanic barrier layer structure
The oceanic barrier layer is situated between the base of the ocean's density mixed layer and the top of the isothermal layer, with its thickness fluctuations directly influencing the ocean's vertical mixing process. Changes in the barrier layer impa.....»»
Deciphering the intensity of past ocean currents
Ocean currents determine the structure of the deep-sea ocean floor and the transport of sediments, organic carbon, nutrients and pollutants. In flume-tank experiments, researchers from MARUM—Center for Marine Environmental Sciences at the Universit.....»»
How male mosquitoes compensate for having only one X chromosome
The research group of Dr. Claudia Keller Valsecchi (Institute of Molecular Biology, Mainz, Germany) and their collaborators have discovered the master regulator responsible for balancing the expression of X chromosome genes between males and females.....»»
New species of tiny wasp comes with mysterious, cloud-like structures at ends of antennae
Fossil researchers have discovered a novel genus and species of tiny wasp with a mysterious, bulbous structure at the end of each antenna......»»
Study: Climate, population structure impact oakleaf hydrangea genetic diversity
Oakleaf hydrangea (Hydrangea quercifolia) is an understory shrub native to the southeastern United States. The species occupies a small native range, and little is known about its demography, genetic diversity, or needs for conservation......»»
Microplastics in the mud: Finnish lake sediments help us get to the bottom of plastic pollution
The sun is shining, and air feels surprisingly warm when we walk on a 35cm ice that covers a frozen lake in central Finland. The heavy sledges move nicely, because there is not much snow on the ice today. The journey isn't far either, as we're by the.....»»
Growing in molasses: Cosmic large-scale structure caught growing slower than expected
The large-scale structure of the universe—the gigantic, hierarchical cosmic web of structures bound by gravity—is mostly made up of dark matter. The growth of the large-scale structure, from individual galaxies to galaxy clusters, cosmic voids an.....»»
Infecting non-immune cells: Finding defies textbook understanding of leishmaniasis infection
The organisms that cause visceral leishmaniasis, a potentially deadly version of the parasitic disease that most often affects the skin to cause disfiguring disease, appear to have a secret weapon, new research suggests: They can infect non-immune ce.....»»
The "Grandmother Hypothesis": Skin behind the ears and between the toes can host a collection of unhealthy microbes
Grandmother was right: Scrubbing behind the ears and between the toes may help keep the skin in those regions healthy, or so says a new study by a team at the George Washington University......»»
Q&A: Indigenous community-first approach to more ethical microbiome research
Every person hosts trillions of microorganisms, like bacteria and viruses, on their skin and in organs including those that make up the digestive tract, like their mouth, that collectively make up their microbiome. Microbiome research can lead to med.....»»
Scientists develop 3D-printed epifluidic electronic skin
In a recent study published in Science Advances, researchers from the California Institute of Technology, led by Dr. Wei Gao, have developed a machine learning (ML)–powered 3D-printed epifluidic electronic skin for multimodal health surveillance. T.....»»
Intense lasers shine new light on the electron dynamics of liquids
An international team of researchers from the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg and ETH Zurich has now demonstrated that it is possible to probe electron dynamics in liquids using intense laser fields and.....»»
Giants with microscopic muscles: New findings reveal the structure of the dexterous elephant trunk
A recent study investigated the musculature of the elephant and found that the trunk is a complex mesh of interwoven muscle and has an immense number of parts. The study was published on September 26, 2023, in Current Biology......»»