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.....»»
This fish doesn"t just see with its eyes, it also sees with its skin
A few years ago while on a fishing trip in the Florida Keys, biologist Lori Schweikert came face to face with an unusual quick-change act. She reeled in a pointy-snouted reef fish called a hogfish and threw it onboard. But later when she went to put.....»»
Apple Watch racial bias lawsuit dismissed with prejudice
An attempted class-action lawsuit claiming the Apple Watch blood oxygen sensor is racially biased against dark skin tones was dismissed with prejudice on Monday.In December 2022, a proposed class action lawsuit was filed by Alex Morales after buying.....»»
Ringing protons give insight into early universe
In the middle of the last century, physicists found that protons can resonate, much like a ringing bell. Advances over the last three decades have led to 3D pictures of the proton and significant insight into its structure in its ground state. But li.....»»
A new way to identify chiral molecules with light could vastly improve detection efficiency
Chiral molecules are those that have two versions that are mirror images, like our right and left hands. These molecules have the same structure but different properties when they interact with other molecules, including those inside our bodies. This.....»»
Researchers describe a "POT-hole" that protects our chromosome ends
Researchers have determined a new feature of how the natural ends of our chromosomes are protected from harmful outcomes......»»
How microhabitat affects bacterial communities in a semi-arid ecosystem
Known as the living skin of dryland ecosystems, biocrust contains diverse soil microorganisms that are essential to biocrust formation and the maintenance of multiple ecological functions......»»
Findlargedir: Find all “blackhole” directories with a huge amount of filesystem entries
Findlargedir is a tool written to help quickly identify “black hole” directories on any filesystem having more than 100k entries in a single flat structure. When a directory has many entries (directories or files), getting a directory lis.....»»
New leaf-tailed gecko from Madagascar is a master of disguise
Leaf-tailed geckos are masters of camouflage. Some species have skin flaps around the whole body and head, as well as flattened tails. During the day, they rest head-down on tree trunks with these skin flaps spread out, and blend seamlessly into thei.....»»
You’re the OS is a game that will make you feel for your poor, overworked system
The disk caching will continue until idle process morale improves. Enlarge / If I click the "I/O Events" in the upper-left corner, maybe some of the frozen processes with a little hourglass will unfreeze. But how soon? Before the.....»»
Arithmetic has a biological origin: It"s an expression in symbols of the "deep structure" of our perception
Everyone knows that arithmetic is true: 2 + 2 = 4......»»
Discarded aloe peels could be a sustainable, natural insecticide
Aloe barbadensis, commonly known as aloe vera, has been used for thousands of years to treat skin ailments, promote digestive health and heal wounds. But while aloe vera gel is in high demand, the peels are thrown away as agricultural waste. Today, s.....»»
Uncovering the local atomic structure of zeolite using optimum bright-field scanning transmission electron microscopy
Zeolites have unique porous atomic structures and are useful as catalysts, ion exchangers and molecular sieves. It is difficult to directly observe the local atomic structures of the material via electron microscopy due to low electron irradiation re.....»»
Why does your hair curl in the summer? A chemist explains the science behind hair structure
If you have curly hair, you know that every day is a new adventure. What will my hair do today? Why does it curl better on some days than others? And even those without naturally curly hair might notice their hair curling—or, let's be honest, frizz.....»»
Countering false and omitted evidence of historically heterogeneous western US dry forests and mixed-severity fires
Evidence of forest structure and fires in pre-industrial dry forests—major forests covering ~26 million hectares (64 million acres) of the western U.S.—provides an essential historical baseline. Dry forests are dominated by ponderosa pine (Pinus.....»»
"Wolverines really need Colorado": Federal decision looms over another reintroduction plan
The mountain devil can cross hundreds of miles of rough alpine terrain, tear into an elk carcass frozen for weeks and fend off predators several times larger than its 40-pound frame......»»
Stellantis" $25,000 EV price target clashing with the UAW"s demands
Stellantis' imperative to reduce its fixed-cost structure in pursuit of more affordable EVs is clashing with the UAW's demands for higher wages and benefits at the bargaining table......»»
How to change your dice skin in Baldur’s Gate 3
A lucky die is essential for a tabletop game, and while your choices are limited, Baldur's Gate 3 does let you customize your dice once you know how to do it......»»
New evidence suggests the world"s largest known asteroid impact structure is buried deep in southeast Australia
In recent research published by myself and my colleague Tony Yeates in the journal Tectonophysics, we investigate what we believe—based on many years of experience in asteroid impact research—is the world's largest known impact structure, buried.....»»
Evolutionary forces shape the human skeleton
Genetic kinship analyses of human bones reach their limits if the DNA is poorly preserved or if destructive sampling is not possible. New research shows that in such cases, comparisons of the structure and shape of certain parts of the skeleton may a.....»»
Novel mechanism for oxygen evolution reaction on dual-atom catalysts increases reaction activity
Atomically precise cluster catalysts bridge the gap between homogeneous and heterogeneous catalysis, facilitating comprehensive elucidation of structure-activity relationships in catalytic processes. However, the synergistic effects between non-singl.....»»