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2022 in Review

The Year in Biology

By John Rennie
December 21, 2022
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Momentum for new ideas in Alzheimer’s research joined advances in neuroscience, developmental biology and origin-of-life studies to make 2022 a memorable year of biological insights.

Holly Moeller walks along Campus Point Beach.
Q&A

She Finds Keys to Ecology in Cells That Steal From Others

By Veronique Greenwood
December 19, 2022
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The ecologist Holly Moeller studies microorganisms that expand their range by absorbing organelles and gaining new metabolic talents from their prey.

Nick Lane of University College London in an exhibit hall at the Grant Museum of Zoology.
Q&A

A Biochemist’s View of Life’s Origin Reframes Cancer and Aging

By Viviane Callier
August 8, 2022
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The biochemist Nick Lane thinks life first evolved in hydrothermal vents where precursors of metabolism appeared before genetic information. His ideas could lead us to think differently about aging and cancer.

The Joy of Why

Why Do We Get Old, and Can Aging Be Reversed?

By Steven Strogatz
July 27, 2022
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Everybody gets older, but not everyone ages in the same way. In this episode, Steven Strogatz speaks with Judith Campisi and Dena Dubal, two biomedical researchers who study the aging process.

an illustration of various objects (a chair, a rocket, a cell phone, etc.) as well as biological objects such as a DNA double-helix and microbe, all against a lime green background
The Joy of Why

What Is Life?

By Steven Strogatz
June 15, 2022
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Without a good definition of life, how do we look for it on alien planets? Steven Strogatz speaks with Robert Hazen, a mineralogist and astrobiologist, and Sheref Mansy, a chemist, to learn more.

Micrograph of a macrophage phagocytosing bacteria.
evolution

Ancient Genes for Symbiosis Hint at Mitochondria’s Origins

By Veronique Greenwood
April 26, 2022
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Was the addition of mitochondria a first step in the formation of complex cells or one of the last? A new study of bacteria tries to answer this contentious question in evolutionary biology.

Artist’s illustration representing the immune system standing guard against a world of pathogens.
The Joy of Why

Why Is Inflammation a Dangerous Necessity?

By Steven Strogatz
April 20, 2022
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The immune system protects us from a full spectrum of pathogens, but without balance, it can end up hurting us over time, too. The immunologist Shruti Naik explains how our defenses can turn on us.

Video of fluorescent neural crest cells migrating through zebra fish tissues.
developmental biology

Cells Blaze Their Own Trails to Navigate Through the Body

By Elena Renken
March 28, 2022
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With self-generated gradients of chemicals and physical tension, cells in the body steer themselves to vital destinations.

computational biology

Most Complete Simulation of a Cell Probes Life’s Hidden Rules

By Yasemin Saplakoglu
February 24, 2022
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A 3D digital model of a “minimal cell” leads scientists closer to understanding the barest requirements for life.


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