National Park Service, Yellowstone and grizzly bear attack
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Yellowstone National Park's elk are known to migrate hundreds of miles, but in 1905 seven cows and three bulls likely set a record – a distance of more than 7,500 nautical miles – when they took a cruise from Washington,
A new study shows that a devastating brain-eating amoeba has been detected in thermal waters at Yellowstone National Park, Grand Teton National Park and Lake Mead National Recreation Area.
Naegleria fowleri, also known as "brain-eating amoeba," has been detected in several of the nation's most popular outdoor destinations, according to a recent study.