Life
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Paleontology
310-million-year-old fossil blobs might not be jellyfish after all
An ancient animal called Essexella may have been a type of burrowing sea anemone, a new study proposes.
By Meghan Rosen -
Physics
Static electricity helps parasitic nematodes glom onto victims
The small electric charge generated by a moving insect is enough to affect the trajectory of a parasitic nematode’s leap so it lands right on its host.
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Animals
A ‘fire wolf’ fish could expand what we know about one unusual deep-sea ecosystem
Unlike other known methane seeps, Jacó Scar is slightly warmer than the surrounding water and is a home for both cold-loving and heat-loving organisms.
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Genetics
Why experts recommend ditching racial labels in genetic studies
Racial labels don’t explain biological and genetic diversity but do cause stigma. They belong “in the dustbin of history,” a panel of experts says.
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Neuroscience
In mice, anxiety isn’t all in the head. It can start in the heart
Scientists used optogenetics to raise the heartbeat of a mouse, making it anxious. The finding could offer a new angle for studying anxiety disorders.
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Life
Honeybees waggle to communicate. But to do it well, they need dance lessons
Young honeybees can’t perfect waggling on their own after all. Without older sisters to practice with, youngsters fail to nail distances.
By Susan Milius -
Neuroscience
Scientists have mapped an insect brain in greater detail than ever before
Researchers have built a nerve cell “connectivity map” of a larval fruit fly brain. It’s the most complex whole brain wiring diagram yet made.
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Agriculture
Dry farming could help agriculture in the western U.S. amid climate change
Some farmers in the western United States are forgoing irrigation, which can save on water and produce more flavorful fruits and vegetables.
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Paleontology
520-million-year-old animal fossils might not be animals after all
Newly described fossils of Protomelission gatehousei suggest that the species, once thought to be the oldest example of bryozoans, is actually a type of colony-forming algae.
By Sid Perkins -
Health & Medicine
Bird flu can jump to mammals. Should we worry?
Reports of bears and sea lions infected with H5N1 have sparked fears about the pandemic potential of bird flu. Experts are keeping a close eye on its spread.
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Environment
The Deepwater Horizon oil spill ruined long-term shore stability
For at least eight years, the oil disaster continued to kill soil-retaining marsh plants along the Louisiana coast, accelerating shoreline loss.
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Animals
What the first look at the genetics of Chernobyl’s dogs revealed
Dogs living in the Chernobyl Nuclear Power Plant industrial area are genetically distinct from other dogs, but scientists don’t yet know if radiation is the reason.
By Meghan Rosen