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» paleontology and developmental biology

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image: Nailing Regeneration

Nailing Regeneration

By | June 12, 2013

Researchers identify the signaling program that enables finger and toenail stem cells to direct digit regeneration after amputation.

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image: Why Many Birds Don’t Have Penises

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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image: Mammoth Blood Gives Hope for Cloning?

Mammoth Blood Gives Hope for Cloning?

By | June 3, 2013

Some question the supposition that viable cells and DNA will be found in a remarkably preserved carcass, purported to harbor fresh muscle tissue and flowing blood.

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image: Loss of Potential

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: Fossil Reshuffles Avian Family Tree

Fossil Reshuffles Avian Family Tree

By | May 30, 2013

A newly discovered fossil of what may be the earliest known bird redraws the picture of the early avian evolution, but some researchers are not convinced.

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image: Week in Review, May 13–17

Week in Review, May 13–17

By | May 17, 2013

Reading pathogen epigenomes; a new stem cell; dealing with research misconduct; monkey fossils; exploratory mice grow new neurons; watching metamorphosis

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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: Week in Review: April 8-12

Week in Review: April 8-12

By | April 12, 2013

Hot topics from the AACR meeting; the ongoing debate about pesticides’ effects on bees; a treasure trove of baby dinos; conservation on social media

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image: Dinosaur Embryo Graveyard

Dinosaur Embryo Graveyard

By | April 10, 2013

A treasure trove of fossilized dinosaur embryos shows signs of extremely fast growth.

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image: Branching Out

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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