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Why was El Reno, Oklahoma tornado downgraded to EF-3?
The tornado that struck El Reno, Oklahoma on May 31, 2013 has been reclassified from an EF-5 to a EF-3 tornado. Why?
September 5, 2013
New model of Earth’s interior reveals clues to hotspot volcanoes
Unlike volcanoes that emerge from collision zones between tectonic plates, hotspot volcanoes form in the middle of the plates.
September 5, 2013
Deep-sea squid lures prey with tentacle fishing line
A tiny club at the end of a long fishing line-type appendage resembles the movements of small marine organisms. The squid attracts its prey, then attacks.
September 5, 2013
Prehistoric climate shift linked to cosmic impact
A new Dartmouth study links an abrupt global change to a colder, dryer climate 12,900 years ago to the impact of an asteroid or comet in Quebec
September 3, 2013
Frogs that hear with their mouth
Gardiner’s frogs from the Seychelles islands, one of the smallest frogs in the world, do not possess a middle ear with an eardrum yet can croak themselves, and hear other frogs.
September 3, 2013
View from space: Smoke from California’s Rim Fire
Smoke from the Rim Fire choked Yosemite National Park during the busy Labor Day Weekend. The smoke is thick, entirely blocking the view of the ground from space. From the ground, the smoke obscured Yosemite’s normally pristine views.
September 3, 2013
Magnitude 7.0 earthquake rocks Alaska’s Aleutian Islands
A 7.0-magnitude earthquake struck near Adak, Alaska earlier today (August 30, 2013). No immediate reports of injuries or serious damage. No tsunami warning.
August 30, 2013
Mega-canyon discovered beneath Greenland ice
Hidden for all of human history, a 460 mile long canyon has been discovered below Greenland's ice sheet.
August 30, 2013
Discoveries in the Amazon: 15 new bird species
Birds' formal description printed in special volume of Handbook of the Birds of the World. Not since 1871 have so many bird species been introduced under a single cover.
August 29, 2013
View from space: California Rim Fire update
Slowly but surely, the Rim Fire in California is being contained. Here's a satellite view from August 28.
August 29, 2013
