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Health & MedicineNew Pfizer vaccine appears 90 percent effective against COVID-19
Preliminary finds show one of the new coronavirus vaccines appears 90 percent effective at reducing symptomatic COVID-19 infections.
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AnimalsAttack of the inner-cannibal mega-shark
The outsized megalodon was a fierce terror that chewed its way across the oceans. It learned to kill even before it was born.
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PlanetsLet’s learn about Mars
Traveling to Mars offers many challenges, including life without gravity, cosmic rays and communication delays.
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BrainScientists Say: Nucleus
Nucleus comes from the Latin term “nuc,” meaning nut or kernel. In science there are lots of nuclei. Every one of them is the center of something.
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AnimalsJumping ‘snake worms’ are invading U.S. forests
These bad-news invaders are spreading across the United States. As they turn forest debris into bare ground, soils and ecosystems are changing.
By Megan Sever -
ChemistryOrdinary paper turns into flexible human-powered keypad
Engineers have figured out how to turn sheets of paper into rugged, low-cost electronic devices, such as a computer keypad.
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AnimalsWhen physicians and veterinarians team up, all species benefit
When doctors for people and those for animals share their expertise, they can discover new ways to take better medical care of all species.
By Liz Devitt -
AnimalsA whale’s nearly four-hour-long dive sets a new record
Cuvier’s beaked whales may rely on large stores of oxygen, a slow metabolism and the ability to tolerate lactic acid to go for hours without surfacing for air.
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Materials ScienceAnalyze This: Insect shells could help builders on Mars
When mixed with rocky soil, a compound called chitin makes a strong material. It could be pulled from the shells of insects used for food.
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AnimalsPolluting microplastics harm both animals and ecosystems
Researchers are beginning to uncover the real-world impacts of polluting microplastic bits on animals and the ecosystems they inhabit.
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BrainMany student athletes face risk of concussions that heal slowly
High school girls and those with a history of concussions appear to take longest to recover.
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EarthScientists Say: Earthquake
An earthquake is a sudden and sometimes violent shaking of the ground.