Black drivers are more frequently searched during traffic stops without finding contraband than white drivers, according to a new study. Researchers analyzed data from 98 million traffic stops, and found that innocent Black drivers were likely to be

Analysis suggests the baby teeth of saber tooth cats stayed in place for years to stabilize the growing permanent saber tooth, perhaps allowing adolescents to learn how to hunt without breaking them. The fearsome, saber-like teeth of Smilodon fatalis

Dog aggression can be unsettling, stressful, and even dangerous, not only for the dog but also for other pets, family members, and strangers. Because some forms of aggression are rare and unexpected, such as rage syndrome, Lori Teller, a clinical pro

New research sheds light on neural processing of diverse classes of rewards in mice, with potential implications for understanding substance use disorders in humans. Drugs like morphine and cocaine fundamentally warp the brain’s reward system—creatin

Plants are not simply victims of circumstances, but have helped to shape climate conditions on Earth, researchers report. Over the course of hundreds of millions of years, Earth has lived through a series of climatic shifts, shaping the planet as we

An experimental monoclonal antibody drug appears to prevent and reverse the onset of clinical type 1 diabetes in mice, and in some cases, to lengthen the animals’ lifespan. Researchers say the drug, called mAb43, is unique because it targets insulin-

Adding a pre-ketone supplement, a component of a high-fat, low-carb ketogenic diet, to a type of cancer therapy in a laboratory setting was highly effective for treating prostate cancer, researchers report. As reported in the journal Cancer Research,

Experts have answers for you about a new drug that can treat food allergies. When your child is allergic to peanuts, every birthday party or meal out is stressful. Will there be peanuts in the cake or cookies? What menu options are peanut free? What

For the first time, scientists have traced an asteroid to its exact place of origin—a particular crater on the moon. Unlike most near-Earth asteroids, which are thought to hail from the main asteroid belt between the orbits of Mars and Jupiter, aster

Computer simulations by astronomers support the idea that dark matter exists, according to researchers. The work addresses a fundamental debate in astrophysics—does invisible dark matter need to exist to explain how the universe works the way it does

Researchers have created new circuit boards that can be repeatedly recycled. A recent United Nations report found that the world generated 137 billion pounds of electronic waste in 2022, an 82% increase from 2010. Yet less than a quarter of 2022’s e-

New findings deepen our understanding of animal cognition. Are mice clever enough to be strategic? Kishore Kuchibhotla, a Johns Hopkins University neuroscientist who studies learning in humans and animals, and who has long worked with mice, wondered

An expert has tips for you to help your cat breathe easy with feline asthma. Spring is often described as a time of renewal and beauty, with flowers blooming and trees budding. However, spring flowers and budding trees also cause higher pollen counts

Researchers have discovered a link between birth mothers who experienced stressful childhood events and their own children’s behavior problem. The finding held true even though the children were adopted as newborns, raised by their adoptive parents,

Researchers have engineered bacteria in the laboratory to efficiently use methanol. The metabolism of these bacteria can now be tapped into to produce valuable products currently made by the chemical industry from fossil fuels. To produce various che

A prehistoric fish known as the saber-tooth salmon is getting a new name. But it hasn’t lost any of its fearsome appeal. New research reveals something new about the piscine anatomy of the giant salmon Oncorhynchus rastrosus. It had a pair of spiked

A new study shows that Alzheimer’s disease both starts earlier and moves faster in people with Down syndrome, The finding may have important implications for the treatment and care of this vulnerable group of patients. Nearly all adults with Down syn

In a new study, giving babies in the NICU acetaminophen instead of opioids following surgery correlated with fewer unplanned intubations and improved mortality rates. The study, published in the Journal of Pediatric Surgery, streamlined care followin

New research digs into how TikTok’s algorithm is personalized and how users engage with TikTok based on its recommendations. TikTok’s swift ascension to the upper echelons of social media is often attributed to its recommendation algorithm, which pre

A new analysis of the economic toll of mental illness considers a host of adverse economic outcomes not considered in earlier estimates. Mental illness costs the US economy $282 billion annually, which is equivalent to the average economic recession,

As solar energy development accelerates, a new survey explores how Americans actually feel about those large scale solar farms they see along the highway or near their neighborhood. The survey finds that for residents living within three miles of a l

Nursing homes in disadvantaged communities are more likely to overmedicate residents with antipsychotics, especially homes that are understaffed, according to a new study. “The neighborhood in which a nursing home is located seems to influence how wi

A drug used to treat children with epilepsy prevents brain tumor formation and growth in two mouse models of neurofibromatosis type 1, according to a new study. Neurofibromatosis type 1 (NF1) is a genetic condition that causes tumors to grow on nerve

Researchers have created a vaccine to fight antibiotic resistance. Driven by the overuse of antimicrobials, pathogens are quickly building up resistances to once-successful treatments. It’s estimated that antimicrobial-resistant infections killed mor

What is insulin resistance and how can you reverse it? An expert has answers for you. Gerald I. Shulman, a professor of medicine (endocrinology) and cellular and molecular physiology, investigator emeritus of the Howard Hughes Medical Institute, and

When it comes to weight loss, how many calories you consume might be more important than when you consume them, researchers report. The findings challenge the popularity of intermittent fasting. For the study, published in the journal Annals of Inter

While most parents of preschool and elementary aged children strive to give their kids a balanced, nutritional diet, some of their strategies to promote healthy eating, may backfire, experts say. For example, three in five parents customize meals if

New research shows how a new treatment helps patients with MS, ALS, or Parkinson’s disease. Is it possible for nanoparticles to go through the digestive system and deliver medicine directly to the brain tissue? Researchers from Michigan State Univers

The US Environmental Protection Agency has imposed the first-ever regulations limiting chemicals known as PFAS, or forever chemicals, in drinking water. Long-term, low-dose exposure to per- and polyfluoroalkyl substances, also known as PFAS or foreve

Social connectedness, a feeling of belonging at school and in the community, can play an important role in suicide prevention among high-risk teens, new research shows. Teachers, social workers, and even neighbors and community members all can make a