Top 4 facts about landslides

Last weekend's fatal mudslide in Washington state obliterated the village of Oso, Washington and left a trail of devastation in its wake. On Tuesday, the death toll stood at 14.

New Chicken from Hell feathered dinosaur found in Dakotas

A newly discovered bird-like dinosaur resembles an ostrich, with claws, a tail and crested head. It's a feather in the cap of American paleontologists.

Video: Grizzly eats my GoPro

Brad Josephs, who captures video of grizzlies and wolves in Alaska, commented, "Note to self: when filming grizzly bears, never hide your camera in a fish."

Flight 370 will make us rethink airline safety, says expert

An expert in atmospheric dynamics and aviation meteorology comments on the mysterious disappearance of Malaysia Airlines Flight 370.

How do volcanos produce lightning?

Scientists are using technology that can peer inside a volcano's ash plume to understand how volcanic lightning is formed.

Ocean wave currents in the search for Malaysia Air Flight 370

We've all seen satellite images of possible floating debris from the missing jet. Why can't we just fly to that spot and find it? The answer is ocean currents.

Video: Are we loving manatees to death?

Manatee season at the Crystal River National Wildlife Refuge in Florida is November 1 to March 31. You can almost imagine the manatees breathing a sigh of relief.

Some perspective on winter 2014

U.S. winter of 2013-14 was only 1°F below average, but it followed two warmer-than-average winters. Did that fact make this winter seem colder than it was?

Before and after images of enormous landslide in Alaska

The landslide on the slopes of Mount La Perouse in Alaska on February 16, 2014 is thought to be the largest known natural landslide on Earth since 2010.

Overgrazing by deer is changing the face of U.S. forests

Deer's natural predators, wolves, have been exterminated. Today, overgrazing by deer in hugely multiplied numbers is affecting forests.