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Seagrass meadows provide food and shelter for myriad residents including the bay scallop, the charismatic West Indian manatee, the seahorse and the green turtle.
Credit: Clockwise from top left:Kimberly Petersen Manzo, www.seagrassli.org; Robert Stewart/Animals Animals; Chris Pickerell, www.seagrassli.org; Rich Carey/IstockphotoPublished: Friday, November 20th, 2009 -
Seagrasses, such as the Zostera shown at top, can grow in dense clumps. The close-up image at bottom left shows two tiny female flowers opening, with a male flower releasing white pollen in between the other two. At bottom right, filaments of pollen in Zostera marina float around fine metal forceps.
Credit: Top photo: Chris Pickerell, www.seagrassli.org; Bottom photos: J. AckermanPublished: Friday, November 20th, 2009 -
Home / Features / December 5th, 2009; Vol.176 #12 / Climate might be right for a deal / Climate might be right for a deal
Young environmental activists from around the world plead for a new agreement to reduce global greenhouse gas emissions during the 2007 U.N. Climate Change Conference in Bali, Indonesia.
Credit: Jewel Samad/AFP/Getty ImagesPublished: Friday, November 20th, 2009 -
Maps show most of Earth's land surface was warmer in September 2009 than the 100-year September average. That made this the second warmest September on land since records began in 1880.
Credit: NOAAPublished: Friday, November 20th, 2009 -
Home / Features / December 5th, 2009; Vol.176 #12 / Climate might be right for a deal / Vanishing ice
The McCall glacier in Alaska's Arctic National Wildlife Refuge has undergone accelerating ice loss in recent decades.
Credit: From top: Austin Post, Matt Nolan; Both: National Snow & Ice Data CenterPublished: Friday, November 20th, 2009 -
China, which recently surpassed the United States in total (not per capita) greenhouse gas emissions, is trying to improve energy efficiency. Workers install a solar roof (left) and a man charges an electric car (right).
Credit: AP; Kevin Lee/Bloomberg/Getty ImagesPublished: December 5th, 2009; Vol.176 #12 -
Home / Features / December 5th, 2009; Vol.176 #12 / Climate might be right for a deal / Some nations go it alone
A vendor in Kenya charges phones and lanterns using electricity from renewable energy. Several African nations have clean-energy goals.
Credit: Simon Maina/AFP/Getty ImagesPublished: Friday, November 20th, 2009 -
Home / Columns / December 5th, 2009; Vol.176 #12 / Comment : From fringe to electromicrobiological mainstream / Ken Nealson
Now, I think people are starting to realize this ability of bacteria to interact with the environment in an electrical way.
Credit: Philip Channing/USC CollegePublished: Friday, November 20th, 2009 -
Home / SN Bookshelf / December 5th, 2009; Vol.176 #12 / Quantum Leaps by Jeremy Bernstein / Quantum Leaps by Jeremy Bernstein
Published: Friday, November 20th, 2009 -
Home / SN Bookshelf / December 5th, 2009; Vol.176 #12 / Reading in the Brain: The Science and Evolution of a Human Invention by Stanislas Dehaene / Reading in the Brain: The Science and Evolution of a Human Invention by Stanislas Dehaene
Published: Friday, November 20th, 2009 -
Home / SN Bookshelf / December 5th, 2009; Vol.176 #12 / Living Weapons: Biological Warfare and International Security by Gregory D. Koblentz / Living Weapons: Biological Warfare and International Security by Gregory D. Koblentz
Published: Friday, November 20th, 2009 -
This unusually deep feature on the moon (in box) is 65 meters wide and may be a portal into an underground cavern that once held flowing lava.
Credit: Haruyama et al./Geophysical Research LettersPublished: Friday, November 20th, 2009 -
The queen of a leaf-cutter colony visits one of the ants' gardens, where green leaf bits feed the pale, spongy fungus that in turn can feed several million ants in a mature colony. A queen can live 15 years and lay some 200 million eggs.
Credit: Michael Poulsen, Science/AAASPublished: Thursday, November 19th, 2009 -
Leaf cutter ants slice foliage into bits that they can carry back to their nests. The ants can't digest the leaves themselves but have what amounts to an external gut, a mix of fungi and nitrogen-fixing bacteria that do the work.
Credit: Jarrod Scott, Science/AAASPublished: Thursday, November 19th, 2009 -
Corn’s amazing diversity is not just kernel deep: The near-complete genome of maize reveals a surprising amount of genetic diversity, even between strains of the crop plant.
Credit: Science/AAASPublished: Thursday, November 19th, 2009
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