Science Brain-eating amoeba turns up in five western national parks Ellsworth Toohey

Delightful Creatures Yellowstone tourists block grizzly bear's path Jason Weisberger

explosions A spectacular hydrothermal explosion caught on camera Rob Beschizza

News Drunken man kicks bison in Yellowstone, gets attacked and arrested Mark Frauenfelder

Nature Remember that time three men got banned from Yellowstone for cooking chickens in a geyser? Lego Park Ranger does! Jennifer Sandlin

Sign Sign Everywhere a sign Yet another Yellowstone touron gets stomped by a bison Jason Weisberger

national parks Intoxicated visitor at Yellowstone in hot water after burning himself in the park's hot water David Pescovitz

Delightful Creatures A fed-up bison sends a rude tourist to the ground at Yellowstone (video) Carla Sinclair

yellowstone This is the second time this month that a bison in Yellowstone has gored someone for getting too close Mark Frauenfelder

bears Woman gets 4-day jail sentence for being too close to Grizzly bear and cubs at Yellowstone Mark Frauenfelder

crime Woman who walked across thermal features at Yellowstone sentenced to a week in the slammer Mark Frauenfelder

yellowstone Watch what happens when a group of people gets too close to a bison Mark Frauenfelder

yellowstone Judge bans men who trespassed on Old Faithful geyser cone Mark Frauenfelder

parks Late night stumble into Yellowstone's Old Faithful results in trip to burn ward Jason Weisberger

bears Yellowstone grizzly bear hunt cancelled thanks to court ruling Séamus Bellamy

Weird Man attempts illegal soak in Yellowstone acidic hot pool, is reduced to wallet and flip-flops Maureen Herman

picks Yellowstone bison calf killed by park rangers after tourists placed it in their rental car trunk Xeni Jardin

robots Bear-deterring "Monster Wolves"sold out in Japan Gail Sherman