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image: Ancient Sex

Ancient Sex

By | October 19, 2014

Fossils of an extinct, armored fish challenge current understanding of when copulation and internal fertilization evolved in jawed vertebrates.

3 Comments

image: Evolving Antibiotic Tolerance

Evolving Antibiotic Tolerance

By | June 25, 2014

E. coli repeatedly exposed to ampicillin adapt to stay dormant for longer periods of time—just long enough to outlast the antibiotic treatment.

1 Comment

image: Ancient Apoptosis

Ancient Apoptosis

By | June 9, 2014

Humans and coral share a cell-death pathway that has been conserved between them for more than half a billion years.

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image: For Some Male Crickets, Silence Means Survival

For Some Male Crickets, Silence Means Survival

By | May 29, 2014

Two island populations of male crickets independently evolved to evade parasites by keeping quiet, and have come up with a way to sneak matings with females that still seek the male courtship song.

2 Comments

image: Ancient Skeleton Sheds Light on Native American Roots

Ancient Skeleton Sheds Light on Native American Roots

By | May 15, 2014

Analysis of approximately 12,000-year-old human remains supports the idea that modern Native Americans evolved from ancestors who migrated out of Asia.

7 Comments

image: The Surprising Evolution of Sex Determination

The Surprising Evolution of Sex Determination

By | April 23, 2014

A detailed analysis of sex chromosomes finds unexpected evolution of functional Y chromosome genes across species.

7 Comments

image: An Ancient Evolutionary Advantage?

An Ancient Evolutionary Advantage?

By | April 1, 2014

Shared sequences within the brain lipid-metabolism pathway between Neanderthals and modern Europeans highlight questions about how these genetic similarities arose.

3 Comments

image: Origins of Lactase Persistence in Africa

Origins of Lactase Persistence in Africa

By | March 13, 2014

Large-scale sequencing effort confirms several mutations that confer lactase persistence in Africans, while haplotype analysis sheds light on the trait’s origins.

3 Comments

image: Convergent Fish Fins

Convergent Fish Fins

By | March 5, 2014

Adipose fins, long considered vestigial, may have evolved multiple times as a key adaptation in some fish, study finds.

1 Comment

image: Jumping Hosts

Jumping Hosts

By | January 30, 2014

A single amino acid change helps a plant pathogen related to the causative agent of the Irish potato famine infect a new host.

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