Life
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AnimalsLet’s learn about tardigrades
These tiny animals can survive drying out, freezing, harsh radiation and other hazards.
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Health & MedicineSeeing sick faces revs up our immune system, new data show
It activates parts of the brain that detect threats and boosts the activity of at least one type of immune cell.
By Simon Makin -
PlantsPhysics explains how rose petals get their iconic shape
Scientists thought they knew what was behind rose petals’ geometry. They were wrong.
By Sarah Wells -
AnimalsQuashing the spotted lanternfly may require help from other species
This invasive pest has spread to 17 U.S. states and may threaten vineyards. But bats, fungi, dogs and even trees may help halt the lanternfly's spread.
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AnimalsWhat dogs see on TV depends on their temperament
Breed, age or sex didn’t seem to matter in how dogs reacted to TV, but personality did. That’s according to a survey of more than 400 dog owners.
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EarthLet’s learn about rivers
Rivers vary a lot in size and terrain, but all share a few basic features.
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LifeScientists Say: Biodiversity
The coral reefs at Komodo, one of the Lesser Sunda Islands in Indonesia, are among the most diverse ecosystems on Earth.
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AnimalsHere’s a spider whose barf is worse than its bite
These critters, which often make their homes on houseplants, don’t bother injecting venom. The spiders just vomit it all over their tied-up prey.
By Susan Milius -
Health & MedicineSleeping in — but not too much — may ease anxiety
Getting up to two hours of weekend catch-up sleep lowers anxiety in teens, new research shows.
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ChemistryUncover leaves’ hidden colors in this science activity
Let’s use a technique called paper chromatography to separate the pigments lurking in tree leaves.
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HumansA real-life vampire probably couldn’t survive on blood alone
Vampires often have human bodies. To survive on blood, they’d need to shed millions of years of evolution.
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AnimalsBirds of paradise have a newly discovered glow
Many male birds of paradise have bellies, bills and other parts that glow under certain types of light. This special gleam may help them woo mates.