Life
- Animals
Scientists Say: Symbiosis
Two species can live together and support each other in a relationship called symbiosis.
- Animals
How do elephants eat cereal? With a pinch
Elephant trunks can grab everything from whole trees to cereal bits. To pick up fine grains, they press, then pinch.
- Animals
Bees stopped buzzing during the Great American Eclipse
A rare study of bees during a total solar eclipse finds that the insects buzzed around as usual — until the darkness of totality arrived.
- Brain
Zaps to spinal cord help paralyzed people walk
Sending electrical pulses to the spinal cord can help paralyzed people learn to walk again, new tests show.
- Genetics
Scientist reports first gene editing of humans
A Chinese researcher claims to have edited the DNA of human embryos. Babies from those embryos were born this month, and the news kicked off a firestorm of controversy.
- Chemistry
Six things that shouldn’t pollute your drinking water
These are why drinking untreated water can be harmful. But keep in mind, today’s water-treatment plants still won’t remove all of these.
- Chemistry
Explainer: How is water cleaned up for drinking
Unless you’re drinking well water, city folks typically get drinking water that has been treated in a water-treatment plant. Here’s what that means.
- Brain
Young people’s memory improves after stopping marijuana use
Paying teens and young adults to stop using marijuana improved their memory within one week. The results hint that some impairments from pot may be reversible — at least for a time.
- Brain
People may be literally led by their noses
The brain links people’s senses of nagivation and smell, according to a new study.
- Life
Scientists Say: Nectar
Nectar is a fluid filled with sugar that plants — especially flowers — produce. They use it to attract animals that will then spread their pollen to another plant.
- Genetics
Plants don’t grow well when always on high alert
Plants make bitter-tasting chemicals to defend themselves against hungry bugs. But they pay a cost for always being on alert, scientists find.
- Fossils
T. rex pulverized bones with an incredible amount of force
Tyrannosaurus rex’s powerful bite and remarkably strong teeth helped the dinosaur crush bones.
