HS-LS1-2
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
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AnimalsA spider’s feet hold a hairy, sticky secret
Their widespread stickiness traces to the shape of hairs on its feet, scientists now find.
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BrainA sense of touch could upgrade virtual reality, prosthetics and more
Scientists and engineers are trying to add touch to online shopping, virtual doctor appointments and artificial limbs.
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LifeWell-known wildflower turns out to be a secret meat-eater
Look closely at Triantha occidentalis, and you’ll see gluey hairs — and a trail of insect corpses on its stem.
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BrainA 2021 Nobel goes for discovering how our body reads touch sensations
David Julius and Ardem Patapoutian found nerve-cell sensors for temperature, pain and pressure.
By Tina Hesman Saey and Freda Kreier -
AnimalsLet’s learn about elephants
Check out five wild facts you may not know about a familiar animal: the elephant.
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Health & MedicineScientists Say: Tonsils
The tonsils are pads of tissue in the throat that are part of the body’s immune system.
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Health & MedicineCannabis may alter a teen’s developing brain
Marijuana use between ages 14 and 19 was linked to faster thinning of brain regions important in decision-making.
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BrainScientists Say: Haptic
Haptic is an adjective used to describe things related to our sense of touch.
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AnimalsHere’s how sea otters stay warm without blubber or a large body
For the smallest mammal in the ocean, staying warm is tough. Now, scientists have figured out how the animals’ cells rise to the challenge.
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AnimalsAbdominal fuzz makes bee bodies super slippery
Scientists find that tiny hairs on a honeybee’s abdomen reduce wear and tear as a bee’s outer skeletal parts rub against each other all day long.
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AnimalsUncovering secrets of the glasswing butterfly’s see-through wings
The tricks of its transparency include sparse, spindly scales and a waxy coated membrane.
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AnimalsA bubble of air lets some lizards breathe underwater
Anolis lizards leap into streams to escape danger. Now researchers have figured out how they can stay underwater for up to a quarter of an hour.