MS-LS1-3
Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
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Tech
Synthetic trees could tap underground water in arid areas
They also could also help coastal residents mine fresh water from salty sources.
By Sid Perkins -
Health & Medicine
Cannabis 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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Animals
Here’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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Animals
Abdominal 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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Animals
Uncovering 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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Animals
A 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.
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Health & Medicine
Cool Jobs: Saliva offers a spitting image of our health
Scientists are using this secretion to study our body’s functions, to test for disease and even to diagnose injury.
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Brain
Search for ‘rewards’ is big driver in remodeling a teen’s brain
Communication ‘highways’ in the brain undergo a major overhaul as children morph into adults. Dopamine plays a big role in this remodeling project.
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Brain
Explainer: What is a neuron?
From the moment you are born, cells called neurons sense information, process it and then pass it on. Neurons allow you to do everything that you do.
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Brain
Scientists Say: Neuron
Neurons are the foundational cells in the nervous system. They pass along and process information using electrical signals.
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Health & Medicine
Teen depression linked to how the brain processes rewards
Depression in teens alters their brains’ pathways in ways that may put those kids at risk of lifelong mental-health problems — unless they get help.
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Brain
Active bodies build stronger brains
Aerobic fitness and physical activity correlate with widespread brain health in adolescents, according to a new imaging study in England.