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Human figures in fetal positions float through a dim, twilit space.
neuroscience

How Loneliness Reshapes the Brain

By Marta Zaraska
February 28, 2023
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Feelings of loneliness prompt changes in the brain that further isolate people from social contact.

An African army ant queen and worker against a white background, emphasizing the huge difference in their sizes
aging

Ants Live 10 Times Longer by Altering Their Insulin Responses

By Viviane Callier
January 10, 2023
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Queen ants live far longer than genetically identical workers. Researchers are learning what their longevity secrets could mean for aging in other species.

Closeup video of a firefly flashing its abdomen, with other seemingly synchronized flashes in the background.
mathematical biology

How Do Fireflies Flash in Sync? Studies Suggest a New Answer.

By Joshua Sokol
September 20, 2022
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Field research suggests a new explanation for the synchronized flashing in fireflies and confirms that a novel form of “chimeric” synchrony occurs naturally.

A video that shows washes of light moving across a model of a human brain.
neuroscience

Brain Chemical Helps Signal to Neurons When to Start a Movement

By Allison Whitten
March 22, 2022
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Dopamine, a neurochemical often associated with reward behavior, also seems to help organize precisely when the brain initiates movements. It’s the latest revelation about the power of neuromodulators.

Image of Trichoplax adhaerens moving against a black background.
biomechanics

This Animal’s Behavior Is Mechanically Programmed

By Jordana Cepelewicz
March 16, 2022
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Biomechanical interactions, rather than neurons, control the movements of one of the simplest animals. The discovery offers a glimpse into how animal behavior worked before neurons evolved.

2021 in Review

The Year in Biology

By John Rennie
December 21, 2021
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The detailed understanding of brains and multicellular bodies reached new heights this year, while the genomes of the COVID-19 virus and various organisms yielded more surprises.

An artist’s conception of the ways that functional capacities have been mapped to regions of the brain.
neuroscience

The Brain Doesn’t Think the Way You Think It Does

By Jordana Cepelewicz
August 24, 2021
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Familiar categories of mental functions such as perception, memory and attention reflect our experience of ourselves, but they are misleading about how the brain works. More revealing approaches are emerging.

Video of a hydra moving against a dark background.
sleep

Sleep Evolved Before Brains. Hydras Are Living Proof.

By Veronique Greenwood
May 18, 2021
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Studies of sleep are usually neurological. But some of nature’s simplest animals suggest that sleep evolved for metabolic reasons, long before brains even existed.

Photo of emperor penguins huddling together for warmth, with two sticking their heads out
Abstractions blog

Math of the Penguins

By Susan D'Agostino
August 17, 2020
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Emperor penguins display rigorously geometric spacing and mathematical efficiency when they huddle together for warmth, which may reveal secrets to their overall health.


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