19+ hour, 29+ min ago   (1003+ words) Hungry dogs made more false alarms, while breakfast helped them reject wrong smells without reducing target detection accuracy. Dogs can find odors that people would never notice, which is why scent detection is useful in jobs ranging from conservation to…...

17+ hour, 29+ min ago   (1052+ words) Babies learn what to expect from caregivers early in life, and maternal depressive symptoms are linked with weaker expectations of comfort. A baby’s cry is one of the earliest social signals people learn to recognize. Long before children can explain…...

18+ hour, 33+ min ago   (978+ words) Humans consistently walk heel-first, a unique walking style that saves energy but creates higher impact forces on bones and joints. Walking is so familiar that the first moment of each step rarely gets much attention. Humans normally place the heel…...

20+ hour, 9+ min ago   (977+ words) Brain recordings reveal that people blend competing goals rather than simply switching from one choice to another. When your phone buzzes on the way to the kitchen, you don’t stop and pick one. You drift toward it, then back, doing…...

2+ day, 16+ hour ago   (1028+ words) A bacterium in the human urinary tract can convert a steroid made by the body into testosterone using two newly identified enzymes. A bacterium that lives inside the human urinary tract can turn a steroid the body already makes into…...

3+ day, 13+ hour ago   (1003+ words) Carefully timed sounds can make fluid waves larger in the sleeping brain, giving researchers a new way to study how brain activity and CSF flow are connected. Sleep is often treated as a time when the brain simply shuts down....

3+ day, 14+ hour ago   (1013+ words) Psychiatrists given the same cases agreed on a diagnosis only 55% of the time, revealing striking differences in how symptoms are interpreted. A psychiatric diagnosis can shape treatment, communication among doctors, and expectations about a person’s condition. For that system to…...

3+ day, 20+ hour ago   (574+ words) A 22% drop in butterfly populations from 2000 to 2020 signals a troubling, widespread decline across the broader pollinator community. Scientists count butterflies more thoroughly than any other insect, which makes them an early-warning system for the health of other animal species that…...

3+ day, 19+ hour ago   (1005+ words) Overlooked ocean foods such as oysters, mussels, shrimp and other invertebrates deliver surprisingly large amounts of essential vitamins and minerals. Fisheries and fish farms report their output in tons, which measures how much food there is but not what’s in…...

3+ day, 20+ hour ago   (829+ words) For adults over 65, fewer full showers may help protect fragile, dry skin, according to dermatologists. The daily shower feels like a rule. It is closer to a habit, and a fairly recent one, built on plumbing and social expectation rather…...