Marsupials might be the more evolved mammals
Mammal evolution has been flipped on its head, according to new research that suggests marsupials are the more evolved mammals......»»
Egg cell maintenance: Long-lived proteins may be essential for fertility
Female mammals—including humans—are born with all of their egg cells. Of a woman's one to two million egg cells, about 400 mature before menopause and can be fertilized. Some egg cells therefore survive for several decades—and need to remain fu.....»»
Features of H5N1 influenza viruses in dairy cows may facilitate infection, transmission in mammals
A series of experiments with highly pathogenic H5N1 avian influenza (HPAI H5N1) viruses circulating in infected U.S. dairy cattle found that viruses derived from lactating dairy cattle induced severe disease in mice and ferrets when administered via.....»»
Notepad’s spellcheck and autocorrect are rolling out to everybody after 41 years
It's still bare-bones by most standards, but Notepad has evolved a lot recently. Testing spellcheck in the latest version of Windows Notepad......»»
AI approach optimizes development of antibody drugs
Proteins have evolved to excel at everything from contracting muscles to digesting food to recognizing viruses. To engineer better proteins, including antibodies, scientists often iteratively mutate the amino acids—the units that are arranged in a.....»»
Study reveals rapid evolution and global spread of Pseudomonas aeruginosa
Pseudomonas aeruginosa—an environmental bacteria that can cause devastating multidrug-resistant infections, particularly in people with underlying lung conditions—evolved rapidly and then spread globally over the last 200 years, probably driven b.....»»
Giant salamander-like creature was a top predator in the ice age before the dinosaurs
Forty million years before the first dinosaurs evolved, a ferocious predator lurked in swampy waters. Its skull alone was over two feet long. It lay in wait, its jaws open wide, preparing to clamp down its interlocking jaws on any prey unwise enough.....»»
Pregnant fish can also get "baby brain," but not the way that mammals do
New research reveals that pregnancy-related brain impairment is present in live-bearing fish, but instead of affecting learning and memory as expected from similar research on mammals, it appears to have a stronger impact on decision-making and senso.....»»
Clues to mysterious disappearance of North America"s large mammals 50,000 years ago found within ancient bone collagen
50,000 years ago, North America was ruled by megafauna. Lumbering mammoths roamed the tundra, while forests were home to towering mastodons, fierce saber-toothed tigers and enormous wolves. Bison and extraordinarily tall camels moved in herds across.....»»
Tracing the evolution of ferns" surprisingly sweet defense strategy
Plants and the animals that eat them have evolved together in fascinating ways, creating a dynamic interplay of survival strategies. Many plants have developed physical and chemical defenses to fend off herbivores. A well-known strategy in flowering.....»»
Scientists pit primates against smaller-brained mammals to find out who is the smartest forager
Primates, including humans, have larger brains than most other mammals, but why? Scientists searching for the answer have long followed a trail pointing to diet—specifically fruit—as the reason for why primates evolved larger brains......»»
US dairy cows are tip of the iceberg as bird flu spreads in mammals globally, says ecologist
Health authorities are working to gather information on the spread of the H5N1 virus, or bird flu, in U.S. dairy cows—the first confirmation of the virus in cattle......»»
Why Do We Sing? New Analysis of Folk Songs Finds Similarities around the World
Across the globe, singing traditions are vast and varied. Their commonalities may help explain how music evolved.....»»
Finding the beat of collective animal motion: Scientists show reciprocity is key to driving coordinated movements
Across nature, animals from swarming insects to herding mammals can organize into seemingly choreographed motion. Over the last two decades, scientists have discovered that these coordinated movements arise from each animal following simple rules abo.....»»
Bigger is better: Male proboscis monkeys" enhanced noses evolved to attract mates, says study
When it comes to the animal kingdom, bigger is better, at least for proboscis monkeys, famously known for their long, large and droopy noses......»»
Exploring diversity in cell division: Study investigates the process of evolution that supports diverse life cycles
New research by EMBL scientists shows how different modes of cell division used by animals and fungi might have evolved to support diverse life cycles......»»
Australian study proves "humans are planet"s most frightening predator"
Australia lacks fearsome large carnivores like lions and wolves, and the relative lack of fear that marsupials like kangaroos and wallabies show to dogs (and other introduced carnivores) has been attributed to a lack of evolutionary experience with l.....»»
Detecting odors on the edge: Researchers decipher how insects smell more with less
Whether it's the wafting aroma of our favorite meal or the dangerous fumes seeping from a toxic chemical, the human sense of smell has evolved into a sophisticated system that processes scents through several intricate stages. The brains of mammals h.....»»
Cybercriminals shift tactics to pressure more victims into paying ransoms
Ransomware didn’t just grow in the US in 2023, it evolved, with the frequency of ransomware claims jumping 64% year-over-year, according to At-Bay. This was primarily driven by an explosion in “indirect” ransomware incidents which increased.....»»
New research suggests diverse headgear in hoofed mammals evolved from common ancestor
From the small ossicones on a giraffe to the gigantic antlers of a male moose—which can grow as wide as a car—the headgear of ruminant hooved mammals is extremely diverse, and new research suggests that despite the physical differences, fundament.....»»
How hunting may have turned humans into long-distance runners
Researchers have discovered hundreds of historical accounts of humans hunting prey by chasing them down over long distances, which some believe is why we evolved our unique talent for endurance running......»»