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12 Stories on Yellowstone National Park
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A timeline of climate change science

Climatology was once a small and often overlooked branch of science. But important discoveries made as early as the 19th century have contributed to what is the most important field of scientific study in the world today. Listed below are some key dates in climate change history.

Where the buffalo roam -- and die

More than half of Yellowstone National Park's bison herd has died since last fall, forcing the government to suspend its annual slaughter program.

Gray wolf: Still endangered?

The gray wolf was officially removed from the Endangered Species Act's "threatened" list Friday after three decades -- a decision that has stoked controversy among environmentalists and ranchers.

Taking the kids: A winter trek in Yellowstone

Old Faithful spews thousands of gallons of steaming water right on schedule, but Miguel isn't the least bit interested. He just lumbers by us searching for lunch.

Taking the kids: Stress-free trip tips for 2008

It's two days before we leave for a trip out West and my husband can't find his hiking boots. And he's not worried in the least.

Time.com: The Gold in Yellowstone's Microbes

Yellowstone's geysers and vents may hold the keys to pharmaceutical and industrial breakthroughs. But should the park profit from it?

Time.com: A Threat to the Yellowstone Grizzlies

Because of global warming, whitebark pine trees are dying. And that is threatening the food supply of grizzly bears

Whitewater deaths surge in U.S.

Fifty people have drowned this year in accidents during trips down whitewater rivers in the United States, where state-by-state safety laws can be spotty.

Predators, humans sharing habitats a volatile mix

Attacks on humans by alligators, bears, mountain lions and other predators are extremely rare, but some wildlife experts say they could become more common as people and animals encroach on each others' habitats.

Searching for aliens in all the wrong places

'OUTER SPACE' -- (CNN) 'Now that would be a dateline to write home about. Or how about: "SEA OF TRANQUILITY" or "PLANUM MERIDIANI"? Those wouldn't be too shabby, either.

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