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bacteria

Biology

At Tiny Scales, a Giant Burst on Tree of Life

A new technique for finding and characterizing microbes has boosted the number of known bacteria by almost 50 percent, revealing a hidden world all around us.

evolution

Biologists Invoke the Past in Modern Bacteria

By swapping ancient genes into modern E. coli, scientists hope to tease out the rules of evolution.

microbes

Below Our Feet, a World of Hidden Life

The soil teems with billions of hidden microbes. Researchers have begun to catalog how these organisms are changing the world.

Biology

Breakthrough DNA Editor Born of Bacteria

Interest in a powerful DNA editing tool called CRISPR has revealed that bacteria are far more sophisticated than anyone imagined.

Multicellularity
evolution

Where Animals Come From

Bacteria may have helped single-celled organisms make the leap to multicellular animals.

Fluorescence
Biology

Inside the Din, Cells Fight Noise With Noise

Is the random noise inside a cell a nuisance, or have cells evolved ways to put it to work?

evolution

Under Pressure, Does Evolution Evolve?

Some organisms respond to stress by driving up their mutation rate. Are they evolving specific mechanisms to enhance evolution in times of crisis?

Q&A

In Pursuit of Quantum Biology

An interview with the Berkeley chemist K. Birgitta Whaley on the promise and challenge of translating quantum biology into practical quantum devices.

genetics

Tiny Genomes and the Origin of Complex Cells

Symbiotic bacteria that dwell within insect cells are intricately intertwined with their hosts, prompting scientists to question when these bacteria stop being bona fide organisms and become part of the cell.