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image: From Many, One

From Many, One

By | April 1, 2015

Diverse mammals, including humans, have been found to carry distinct genomes in their cells. What does such genetic chimerism mean for health and disease?

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image: Ebola Mutation Rate Quibble

Ebola Mutation Rate Quibble

By | March 27, 2015

A study suggests that the virus may not be evolving as quickly as a previous group estimated.

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image: Short, Strong Signals

Short, Strong Signals

By | March 25, 2015

Methylation increases both the activity and instability of the signaling protein Notch.

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image: T Cells of the Skin

T Cells of the Skin

By | March 18, 2015

A census of adaptive immune system components in human skin reveals a variety of resident and traveling memory T cells.

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image: Oldest <em>Homo</em> Remains Yet Found

Oldest Homo Remains Yet Found

By | March 4, 2015

A newly discovered 2.8 million-year-old jawbone is thought to be that of a direct human ancestor.

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image: A Deathly Pallor

A Deathly Pallor

By | March 1, 2015

Global warming could lead to lighter-colored insects with waning immune defenses.

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image: Capsule Reviews

Capsule Reviews

By | March 1, 2015

Evolving Ourselves, The Man Who Touched His Own Heart, Bats, and The Invaders

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image: Drunk Monkeys

Drunk Monkeys

By | March 1, 2015

UC Berkeley biologist Robert Dudley explains his "drunken monkey" hypothesis for how humans developed a taste for alcohol.

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image: Falling Out of the Family Tree

Falling Out of the Family Tree

By | March 1, 2015

A mutation in an ethanol-metabolizing enzyme arose around the time that arboreal primates shifted to a more terrestrial lifestyle, perhaps as an adaptation to eating fermented fruit.

1 Comment

image: Evolutionary Rewiring

Evolutionary Rewiring

By | February 26, 2015

Strong selective pressure can lead to rapid and reproducible evolution in bacteria.

7 Comments

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