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Tornadoes in 2011 were extreme
Meteorologist Jeff Masters explains science behind the fierce 2011 tornadoes in the United States.
May 23, 2011
New fossil primate species found in West Texas
A new fossil primate, a lemur-like creature, among the last of North American primates, once lived in tropical West Texas over 43 million years ago.
May 22, 2011
Black carbon tracked in the Arctic
Scientists estimate that reducing black carbon emissions could reduce warming in the Arctic by about two-thirds over the next thirty years.
May 22, 2011
Are worm lizards closely related to snakes?
A lizard fossil from Germany provides evidence that worm lizards and snakes are not closely related, but evolved separately.
May 22, 2011
Mississippi River flooding in May 2011
The spread of the MIssissippi River beyond its banks in May 2011, as seen by Landsat 5. In the video, the 2011 images are contrasted with images from a year ago.
May 19, 2011
Neanderthal hunting tactics hidden in reindeer teeth
Neanderthal hunters likely had sophisticated hunting practices similar to those of later humans in the Upper Paleolithic.
May 18, 2011
Striped bark scorpion deep in the heart of Texas
Live in the Texas Hill Country a while, and you'll probably experience the painful sting of the striped bark scorpion. But don't worry, it's usually not fatal.
May 17, 2011
Land crab species disappeared from Hawaii 1,000 years ago
It's a new land crab species we'll never see. They disappeared about 1,000 years, not long after the first humans arrived to the Hawaiian Islands.
May 17, 2011
Tarantulas shoot silk from feet
Life-saving silk threads keep delicate tarantulas from falling.
May 17, 2011
Young T. rex-like dinosaurs didn’t hunt like grown-ups
Fossils from Juvenile Tarbosaurus dinosaurs from Mongolia reveals that youngsters of that species didn't compete with adults for food.
May 16, 2011
