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image: Stemming the Toxic Tide

Stemming the Toxic Tide

By | September 1, 2012

How to screen for toxicity using stem cells

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image: Creating Sperm from Skin

Creating Sperm from Skin

By | August 30, 2012

Researchers create early stage sperm cells from induced pluripotent stem cells, raising hopes that infertile men could be fathers.

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image: Prayer Takes Precedence Over Science?

Prayer Takes Precedence Over Science?

By | August 14, 2012

A Bill of Rights amendment reaffirming the right to pray could have negative consequences for the teaching of evolution.

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image: Gene Variation within a Tree

Gene Variation within a Tree

By | August 13, 2012

The root system of a tree species is genetically different than the leaves of that individual, potentially modifying scientists’ understanding of evolution.

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image: New Human Species Discovered

New Human Species Discovered

By | August 9, 2012

Fossils from northern Kenya point to a new human species that lived in Africa nearly 2 million years ago.

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image: A Scientist Emerges

A Scientist Emerges

By | August 1, 2012

At age 16, Alexandra Sourakov has her first scientific publication, on the foraging behavior of butterflies.

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image: Wired to Run—and Think

Wired to Run—and Think

By | July 26, 2012

Evolving the ability to run may also have made our ancestors smarter, suggesting that exercise can be healthy for the brain as well as the body.

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image: Double Duplication

Double Duplication

By | July 24, 2012

Two whole genome duplications boosted the complexity of the ancestor of all vertebrates, but also introduced potential for disease.

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image: The Polar Bear’s Prehistoric Past

The Polar Bear’s Prehistoric Past

By | July 23, 2012

Genomic analyses reveal that the polar bear evolved between 4 and 5 million years ago, far earlier than previous studies had estimated.

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image: Sex Drives Chromosome Evolution

Sex Drives Chromosome Evolution

By | July 19, 2012

A relatively new pair of sex chromosomes in the fruit fly allows researchers to track their evolution from the beginning.

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