SN Online

SN Online

By Science News

- More than 2 years ago

LIFE
The activity of just a few genes may be key to limb evolution. Read “Fins to limbs with flip of genetic switch.”

NASA, NOAA

Scientists analyze chemical forms in gorilla poop to reconstruct monthly shifts in the animals’ diets. See “Feces study gets the poop on gorillas’ diet.”

EARTH
New satellite images dubbed “Black Marble” show nighttime lights across the globe. See “Earth in the black.”

ATOM & COSMOS
A nearby sunlike star may host five planets that weigh between two and six Earth masses. Read more in “Possible planet looks habitable.”

A version of this article appears in the January 26, 2013 issue of Science News.

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