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Articles on Yellowstone National Park

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Traffic at the south entrance to Yellowstone National Park on Aug. 20, 2015. Neal Herbert, NPS/Flickr

Overcrowded US national parks need a reservation system

It's hard to preserve national parks "unimpaired," as US law directs, when they're overrun with tourists who stray off paths, strew trash and harass wildlife. A parks scholar calls for crowd control.
The 2016 Maple fire (photographed in July 2017) reburned young forests that had regenerated after the 1988 Yellowstone fires. More frequent high-severity fires are expected in the future as climate warms, which may change patterns of forest recovery. Monica Turner

Here’s how forests rebounded from Yellowstone’s epic 1988 fires – and why that could be harder in the future

Huge fires roared through Yellowstone National Park in the summer of 1988, scorching one-third of the park. Since then the park has been a valuable lab for studying how forests recover from fires.
It’s bacterial biofilms that give the Grand Prismatic Spring its colorful hues. Karin Sauer

Unlocking the secrets of bacterial biofilms – to use against them

The vast majority of the bacteria that surround us are not free-floating but prefer to band together in cooperative communities called biofilms. How do biofilms form and cooperate?

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