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image: Trapped in Time

Trapped in Time

By | February 10, 2015

Ancient sulfur-eating deep-sea bacteria closely resemble modern variants, suggesting evolution may not occur in static environments.

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image: America’s First Pooches

America’s First Pooches

By | January 27, 2015

Study of ancient dog DNA sheds light on early Americans’ relationships with their pets.

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image: Fraction of SNPs Can Affect Fitness

Fraction of SNPs Can Affect Fitness

By | January 21, 2015

A point mutation analysis of the entire human genome finds that alterations to as many as 7.5 percent of nucleotides may have contributed to humans’ evolutionary split from chimpanzees.

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image: Reassessing One Really Old Fish

Reassessing One Really Old Fish

By | January 13, 2015

New analysis of an ancient specimen prompts a rethink of fish forebears.

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image: The Benefits of Being a “Bearded Lady”

The Benefits of Being a “Bearded Lady”

By | January 8, 2015

A study of female eastern fence lizards that bear a distinctly male trait yields tantalizing clues about the tradeoffs involved in blurring the lines of sexual dimorphism.


image: Iron-Ferrying Protein Impedes Pathogens

Iron-Ferrying Protein Impedes Pathogens

By | December 15, 2014

Meningitis-causing bacteria exerted strong evolutionary pressure on an iron-binding protein in primates, a study shows.


image: Evolution in Oil Droplets

Evolution in Oil Droplets

By | December 9, 2014

For the first time, researchers have mimicked biological evolution using chemicals instead of living organisms.


image: Gene Jumped to All Three Domains of Life

Gene Jumped to All Three Domains of Life

By | December 1, 2014

By horizontal gene transfer, an antibacterial gene family has dispersed to a plant, an insect, several fungi, and an archaeon.

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image: Barley Key to Mankind’s Alpine Incursion

Barley Key to Mankind’s Alpine Incursion

By | November 24, 2014

The cold-tolerant cereal crop allowed humans to live and farm higher than ever starting more than 3,000 years ago.


image: Butterfly Eyespots Deflect Predation

Butterfly Eyespots Deflect Predation

By | November 12, 2014

Researchers show that patterned coloration can be an effective means of distracting predators from vital body parts.

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