Humans
- Microbes
Scientists Say: Virus
A virus must take over a living cell's machinery to make more viruses.
- Health & Medicine
Fentanyl deaths have spiked among U.S. kids and teens. Here’s what to know
A pediatrician discusses how teens can protect themselves and their friends from this extremely deadly drug.
- Humans
How fingerprints form is no longer a mystery
A mathematical theory proposed in the 1950s helps explain how fingerprint patterns such as arches, loops and whorls arise.
- Chemistry
Scientists Say: PFAS
Non-stick coatings, stain-resistant cloth and other common materials leach long-lived PFAS into soil and water.
- Brain
Ingredients in popular snack foods can make them addictive
Researchers find that highly processed foods rich in sugar and added fat may be as addictive as tobacco.
- Health & Medicine
How to be heat-safe when playing sports
Protecting young athletes from overheating is getting more important as climate change turns up the temperature.
- Genetics
Experiment: Are fingerprint patterns inherited?
Let’s investigate whether fingerprint patterns are created randomly or whether they are influenced by genetics.
- Chemistry
Chemists have unlocked the secrets of long-lasting Roman concrete
By searching ancient texts and ruins, scientists found a concrete recipe that could make buildings stronger — and help address climate change.
- Agriculture
Native Amazonians make rich soils — and ancient people may have too
Modern Amazonians make nutrient-rich soil from ash, food scraps and burns. The soil strongly resembles ancient “dark earth” found in the region.
- Health & Medicine
Scientists Say: Kidney
The kidneys remove waste and excess water from the blood, forming urine.
- Psychology
There’s a real upside to knowing you could be wrong
We’re often certain that what we believe is true. But questioning those beliefs, as Galileo did, can help us learn better — and even perform better on tests.
- Health & Medicine
Let’s learn about allergies
Allergies are caused by the body’s immune system overreacting to harmless substances.
