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How do octopuses coordinate their arms?

Abstract Have you ever tried patting your head and rubbing your stomach simultaneously? Coordinating two arms at the same time can be difficult. So imagine if you had eight arms,…

Can a supervillain destroy the sun?

The sun’s light and warmth make life possible on Earth. But these same qualities also make the sun a tempting target for fictional supervillains. If an evildoer could control the…

Mice show us why food poisoning is so hard to forget

Food poisoning isn’t something we easily forget. Scientists have now homed in on what makes it so unforgettable. Alarm cells lock the experience into our brain’s circuitry as a yucky memory.…

This researcher investigates the risks of digitally cloning the dead  

Consider this hypothetical scenario: 8-year-old Sam is texting with his mom, Anna. Anna apologizes for missing his concert last week. But Anna isn’t away on a trip. In fact, she…

Scientists Say: Ecosystem

Ecosystem (noun, “EE-koh-sis-tem”) An ecosystem is a network of living and nonliving things interacting in the same place. The living things in an ecosystem could include animals, plants and microbes.…

The rear end of this ancient wasp was built like a Venus flytrap

One ancient type of wasp appears to have had an especially freaky way to trap prey 99 million years ago. It used a mouth-like structure on its backside, fossils now…

Study uncovers secrets in water’s underground treks

When rain or snow falls, much of it seeps into the soil. From there it flows down through porous rock, gravel and sand, forming underground streams. This groundwater will sometimes…

DNA confirmed a Pueblo tribe’s ties to Chaco Canyon

Chaco Canyon was once the heart of a lost civilization. People began building grand structures there around A.D. 850, in what is now northwest New Mexico. Within 300 years or…

How can there be oxygen in the deep sea without light?

Abstract Have you ever wondered what goes on at the bottom of the ocean? We do! During experiments near the seafloor, we detected oxygen production. It did not make sense.…

A passing star could fling Earth out of orbit — or into the sun

Bad news, earthlings. Computer models of the solar system’s future reveal a new risk facing us all. The gravitational tug of a passing star could cause another planet to smack…