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Biology

520px illustration of genome packaging
genomics

How Cells Pack Tangled DNA Into Neat Chromosomes

For the first time, researchers see how proteins grab loops of DNA and bundle them for cell division. The discovery also hints at how the genome folds to regulate gene expression.

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Abstractions blog

Evolution Saves Species From ‘Kill the Winner’ Disasters

Modelers find evidence that a combination of competition, predation and evolution will push ecosystems toward species diversity anywhere in the universe.

520px photo of lit neurons
Abstractions blog

With Strategic Zaps to the Brain, Scientists Boost Memory

Stimulating part of the cortex as needed during learning tasks improves later recall. The finding reveals more about the brain’s memory network and points toward possible therapies.

520px photo of Jarvis holding a zebra finch
Q&A

In Birds’ Songs, Brains and Genes, He Finds Clues to Speech

The neuroscientist Erich Jarvis found that songbirds’ vocal skills and humans’ spoken language are both rooted in neural pathways for controlling learned movements.

520px 3D illustration of tissue curling
Abstractions blog

Tissue Engineers Hack Life’s Code for 3-D Folded Shapes

Mechanical tension between tethered cells cues developing tissues to fold. Researchers can now program synthetic tissue to make coils, cubes and rippling plates.

520px photo of a dingo
evolution

A Domesticated Dingo? No, but Some Are Getting Less Wild

Near an Australian desert mining camp, wild dingoes are losing their fear of humans. Their genetic and behavioral changes may echo those from the domestication of dogs.

520px illustration of microbial networks
microbiology

Simpler Math Tames the Complexity of Microbe Networks

The dizzying network of interactions within microbe communities can defy analysis. But a new approach simplifies the math and makes progress possible.

520px image of Ed Boyden
Q&A

A Neurobiologist Thinks Big — and Small

By developing new tools for visualizing subcellular structure and activity in molecular detail, Ed Boyden advances on his goal of understanding how the brain works.

Aribidopsis thaliana inflorescence
Abstractions blog

With ‘Downsized’ DNA, Flowering Plants Took Over the World

Compact genomes and tiny cells gave flowering plants an edge over competing flora. This discovery hints at a broader evolutionary principle.