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Why Many Birds Don’t Have Penises

By | June 7, 2013

In avian species, a gene induces programmed cell death during development in the area where a phallus would otherwise grow.

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Bird Bullies

By | June 1, 2013

Regular supplies of food for scavenger birds in Spain may not be the most effective conservation strategy, as smaller birds are bullied away.

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Loss of Potential

By | June 1, 2013

In the fruit fly, the ability of neural stem cells to make the full repertoire of neurons is regulated by the movement of key genes to the nuclear periphery.

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image: Epigenetics of Embryonic Stem Cells

Epigenetics of Embryonic Stem Cells

By | May 14, 2013

Researchers track DNA modifications and gene expression in stem cells as they differentiate.

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image: Opinion: Does Social Media “Like” Conservation?

Opinion: Does Social Media “Like” Conservation?

By , , , and | April 8, 2013

Environmental issues that resonate on an immediate, emotional level seem to play better on sites like Facebook than do longer-term, but no less serious problems.

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Border Buffers

By | April 1, 2013

Protected areas help to conserve imperiled tropical forests, but many are struggling to sustain their resident species.

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Branching Out

By | April 1, 2013

Satellites of the Golgi apparatus generate the microtubules used to grow outer dendrite branches in Drosophila neurons.

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Capsule Reviews

By | April 1, 2013

Leopold, The Drunken Botanist, Beautiful Whale, and Between Man and Beast

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Pluripotent Until Needed

By | April 1, 2013

Microarrays help keep induced pluripotent stem cell lines in check, from start to finish.

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Smurf-y Old Age

By | April 1, 2013

Flies turning blue help researchers link the deterioration of the intestinal barrier to age-related death.

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