Originally published on Mon April 21, 2014 12:36 pm
In a surprising discovery, scientists have found evidence of a tundra landscape in Greenland that's millions of years old. The revelation goes against widely held ideas about how some glaciers work, and it suggests that at least parts of Greenland's ice sheet had survived periods of global warming intact.
Originally published on Sat April 19, 2014 11:42 am
How did it happen? How'd the zebra get its stripes?
In Rudyard Kipling's version, a gray, horsey-looking beast went into "a great forest 'sclusively full of trees and bushes and stripy, speckly, patchy-batchy shadows," stayed there awhile, and after a "long time"... got stripy.
In the early 1990s, a young brain researcher named Ivan Soltesz heard a story that would shape his career.
His adviser told him about a school for children whose epileptic seizures were so severe and frequent that they had to wear helmets to prevent head injuries. The only exception to the helmet rule was for students who received an award.
"The big deal for them is that they can take the helmet off while they're walking across the stage," Soltesz says. "And that thing struck me as just wrong."
The Keystone XL pipeline remains a major point of contention within the Democratic Party, as green voters pull President Obama one direction and pro-energy senators and labor unions pull the other. It looks as though the "comment period" for the project will be extended, delaying a decision past the November elections.
Originally published on Fri April 18, 2014 2:12 pm
Japan says it will kill fewer whales when its seasonal Pacific hunt begins next week and will only observe whales in the Antarctic, after a U.N. court ordered it to stop taking the marine mammals from the Southern Ocean.