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Friday, December 13, 2019

Immune cells cluster to fight viruses

Like birds, ants, and other living organisms, immune cells work collectively to kill viruses like the flu. That finding offers new insights into how immune cells work together to get to their final destination—the site...

Hot bodies reveal where Pacific bluefin tuna eat

Scientists have developed a new way to measure how and when ocean predators consume prey, and they’ve used it to identify the Pacific bluefin’s favorite hot spots. The findings could help design better conservation policies to help a...

Why robots sink in sand but lizards don’t

Having a light touch can make a big difference in how well animals—and robots—move across surfaces such as snow, sand, and leaves. Scientists studying how running lizards, geckos, crabs and a robot named Sandbot moved across a trackway...

Low-key chase lets whale sharks gulp tiny prey

Whale sharks—the largest of the fish—eat truly tiny prey: krill and plankton. To dive to great depths for a good meal, they’ve evolved ways of swimming and diving that use as little energy as...

Do these mummy knees belong to Queen Nefertari?

A pair of mummified legs on display in an Italian museum may belong to Egyptian Queen Nefertari—the the pharaoh Ramses II’s favorite wife. Researchers used radiocarbon dating, anthropology, palaeopathology, genetics, and chemical analysis to identify...

Mermaid’s wineglass gets droopy in acidic ocean

An increasingly acidic ocean is weakening the protective shell of mermaid’s wineglass, a tiny, single-celled alga that lives on shallow seafloors. Reaching a height of just a few inches, Acetabularia acetabulum sports a supportive skeleton...

21st eclipse NASA tool

Check out what the today's eclipse will look like in any area of the world As many of you will know, today will be the expected total eclipse in the United States. Thanks to the...

Yeast vs. plants: How to make better cancer drugs

Much of the medicine we take today to treat pain, fight cancer, or thwart disease comes from plants. But, some of those plants are endangered and may be the primary source of the drug. Now,...

Brain readjusts your eyeballs with each blink

Every few seconds, our eyelids automatically shutter and our eyeballs roll back in their sockets. Why don’t we perceive intermittent darkness and light? Because the brain works extra hard to stabilize our vision despite our...

Space changed gut bacteria of these twin astronauts

Researchers studying the gut microbes of Scott and Mark Kelly, NASA astronauts and identical twin brothers, have found that spaceflight causes changes, but it’s not clear what the changes mean. The research is one of...
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