From Molecules to Organisms: Structures and Processes
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Health & MedicineMeet CLA, a naturally ‘healthy’ fat in burgers, ice cream and more
Solid at room temp, the natural trans fat conjugated linoleic acid resembles saturated fats — except that it appears good for the body in many ways.
By Janet Raloff -
Health & MedicineHere’s what nutrition experts say about dietary fat
New U.S. dietary guidelines promote eating full-fat dairy and meats. But health experts say nuts and seed oils are better sources of the two crucial fats we need.
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Health & MedicineExplainer: What are ultraprocessed foods?
Packed with chemical additives, these foods have become a major part of our diets. Scientists have begun to worry about how ultraprocessed foods may impact health.
By RJ Mackenzie -
AnimalsFlat-faced dogs often struggle to breathe easy
Pugs and bulldogs aren’t the only dogs with breathing problems. Pekingese, Japanese chins and other squish-faced breeds have this issue, too.
By Jake Buehler -
AnimalsWind won’t keep hungry yellow jackets away from your picnic
Hungry yellow jackets are really good at tracking attractive odors. Even in windy and difficult conditions, they can find your barbecue.
By Jake Buehler - Microbes
Analyze This: Which cells are the speediest?
The cellular Olympics would be an amazing spectacle. Some cells move at mind-boggling speeds by jumping, gliding, swimming, expanding or shrinking.
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ArchaeologyAncient pottery shows the earliest evidence of humans doing math
The numbers of petals painted on 8,000-year-old pottery showed a distinct numerical pattern.
By Tom Metcalfe - Health & Medicine
Got brain rot?
Excessive scrolling through social media or viral videos can mess with your mental health — and possibly alter your brain’s development, studies show.
- Science & Society
Stressed by tech? Here’s how to find help
This checklist can help you assess and improve your experiences — and your mental health.
By Wendy Orlando and Janet Raloff -
Science & SocietyLarge numbers of underage kids are on social media, study finds
Two in every three kids aged 8 to 12 have already been on social media, and one-tenth have been bullied there. Some kids report other bad experiences too.
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AnimalsA bonobo’s imaginary tea party hints that apes can pretend
Kanzi would sometimes play with imaginary juice and grapes, just as humans might. The bonobo's ability challenges old ideas about how animals think.
By RJ Mackenzie -
Health & MedicineA new cell model could help kids and teens with arthritis
This model was built by a teenager with juvenile idiopathic arthritis — a poorly understood chronic illness.