From Molecules to Organisms: Structures and Processes
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AnimalsWhy some whales become giants and others are only big
Being big helps whales access more food. But just how big a whale can get is influenced by whether it hunts or filter-feeds.
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BrainScientists’ brains shrank after a long stay in Antarctica
The isolation of a long-term mission at an Antarctic research station shrunk part of crew members’ brains, a small study suggests.
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Health & MedicineGlobetrotting microbes in airplane sewage may spread antibiotic resistance
Along with harder-to-kill microbes, airplane sewage contains a diverse set of the genes that let bacteria evade antibiotics.
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Health & MedicineViewing virtual reality of icy landscapes may relieve pain
Traveling to polar vistas via virtual reality eased a temporary burning in the viewers’ skin. The same VR also lessened simulated chronic pain.
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Health & MedicineDrug-resistant germs kill some 35,000 Americans each year
The new mortality rate may be way low, some experts say. Also troubling are two new germs that have emerged as big and urgent threats.
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AnimalsWhales echolocate with big clicks and tiny amounts of air
Toothed whales may echolocate using bits of air that they recycle inside their heads to conserve both air and energy.
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Health & MedicineVaping emerges as possible trigger for seizures
Anonymous accounts have been filed with the FDA reporting seizures in teens after vaping. These were linked most often to JUUL and related pods.
By Janet Raloff -
ChemistryLike Magneto? Microcrystals give magnets superpower over living cells
New iron-rich protein crystals could help researchers better understand the nerve cells that control movement and sensation. All they need are magnets.
By Jeremy Rehm -
BrainAs teens gain weight, they find high-fat foods less pleasurable
Teens who gained excess weight showed less activity in the brain’s reward center when viewing or tasting foods with lots of fat.
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BrainSleep may jumpstart the brain’s power washing system
Waves of fluid wash into the human brain during sleep. That’s good. They just may help clean out toxic proteins.
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ChemistryScientists look to hack photosynthesis for a ‘greener’ planet
Photosynthesis turns sunlight into energy for plants. Scientists want to know more about it, imitate it — even improve it.
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LifeA new spin on lab-grown meat
A technique inspired by how cotton candy is spun could help produce lab-grown meat at a lower cost and on a bigger scale.