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image: Remodeling Myelin

Remodeling Myelin

By | August 1, 2013

New oligodendrocytes in the adult mouse brain appear to remodel existing myelin sheaths, which may fine-tune the speed of nerve impulses.

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image: The Eye of the Finch

The Eye of the Finch

By | August 1, 2013

Beaks did it for Darwin. Now, monitoring real-time evolution of bacteria that infects finch eyes reveals repeated, rapid evolution of an emerging avian pathogen in backyards throughout the U.S.

3 Comments

image: The Roots of Monogamy

The Roots of Monogamy

By | July 31, 2013

A new analysis suggests that infanticide drove the evolution of pair living in some primate species, though another study reaches a different conclusion.

4 Comments

image: Week in Review, July 22–26

Week in Review, July 22–26

By | July 26, 2013

Faux stem cells; X chromosome involved in sperm production; rewarding peer review; clues to flatworm regeneration; an ethereal glow signals death

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image: Stricter Stem Cell Guidelines Sought

Stricter Stem Cell Guidelines Sought

By | July 25, 2013

A new working group is seeking to define rigorous standards for the study of mesenchymal stem cells.

10 Comments

image: A Wild Stem Cell Chase

A Wild Stem Cell Chase

By | July 24, 2013

A rigorous new study provides strong evidence that very small embryonic-like stem cells hypothesized to be found in mice and humans do not exist.

1 Comment

image: Keeping Up with Climate Change

Keeping Up with Climate Change

By | July 24, 2013

In order to adapt to this century’s changing temperatures, vertebrates will need to evolve much faster than in previous eras.

3 Comments

image: A Big-Nosed Horn-Faced Dino

A Big-Nosed Horn-Faced Dino

By | July 18, 2013

The discovery of a new species of horned dinosaur supports the idea that similar but separate species evolved on the same landmass thanks to a natural barrier.  

1 Comment

image: Italian Stem Cell Controversy

Italian Stem Cell Controversy

By | July 16, 2013

Italian government officials and scientists clashed last week with a controversial stem cell researcher over details of an upcoming clinical trial.

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image: Gene Therapy Coming of Age?

Gene Therapy Coming of Age?

By | July 11, 2013

Using lentiviral vectors to replace mutated genes in blood stem cells, scientists successfully treat two rare diseases apparently without causing harmful side effects.

2 Comments

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