Energy isn’t really made of anything else. It’s a kind of capacity to do things
Three upright walkers, including Lucy (center) and two specimens of Australopithecus sediba, a human ancestor from South Africa dating back nearly 2 million years.
Image compiled by Peter Schmid and courtesy of Lee R. Berger/Wikimedia Commons
Most jellyfish are “passive” feeders. This means that they float through the water eating whatever they happen to pass in the water and can fit in their mouths.
On average, two students in every U.S. classroom have ADHD.
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Even when the condition lasts a lifetime, there are behavioral treatments and prescription drugs that make it easier for people with attention-deficit hyperactivity disorder to thrive.
A dentist explains why this is a habit worth breaking – no matter the cause or the strength of your cravings to keep doing it.
The collective memory of school desegregation is of anger and division, like in this photo of 15-year-old Elizabeth Eckford walking away from a crowd outside a high school in Little Rock, Ark.
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Americans’ collective memory of school desegregation involves crowds of screaming white protesters. But less well known are the whites who stood by quietly, and those who approved of the changes.
Samantha Lee, The University of Western Australia; David Mackey, The University of Western Australia, and Serena Wee, The University of Western Australia
Understanding your genes is a great way to understand certain things about yourself — yet, who we are is determined by so much more than just DNA.
The American Academy of Pediatrics says teens should never consume energy drinks.
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The temperature of the Sun’s surface is about 6,000°C. But higher above the surface, in the atmosphere, it suddenly shoots up to more than a million degrees!
COVID-19 vaccines have been proved safe and effective. But it’s understandable to have questions.
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Planting a massive number of trees can help slow climate change, but it is only part of the solution.
Tyrannosaurus rex was a relentless predator who lived during the Cretaceous Period more than 65 million years ago.
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Cassette tapes were the first great advancement in portable recording and playback. You can draw a direct line between them and the music apps on every smartphone today.