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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.


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.


image: Kerfuffle Over Antishock Drug Paper

Kerfuffle Over Antishock Drug Paper

By | August 3, 2012

A slight flaw in a study on the effectiveness of a drug widely used to combat shock in critically injured patients almost gets a Danish researcher sued for millions.


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.


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.


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.


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.


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.


image: Flies Evolve to Count

Flies Evolve to Count

By | July 12, 2012

Researchers breed fruit flies that, after 40 generations of conditioning, have acquired the ability to react to numbers.


image: Small-Brained Fish Make More Babies

Small-Brained Fish Make More Babies

By | July 12, 2012

Guppies with experimentally shrunken brains produced more offspring than guppies bred for larger noggins, confirming a long suspected tradeoff of bigger brains.



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