environment

Earth Notes: Honeypot Ants

Aug 30, 2017
Gary Alpert

Feast or famine is the watchword in the Colorado Plateau’s unpredictable climate. To survive lean times, honeypot ants, common in the region, have devised a unique strategy.  


Jesse Barber

Many insects and spiders rely on sounds and vibrations to find food, meet mates and detect predators. So it’s likely they’d be sensitive to the roar of heavy machinery. 


Associated Press

The federal government announced Wednesday it will eliminate a policy that allowed national parks like the Grand Canyon to ban the sale of bottled water in an effort to curb litter.

Earth Notes: Quiet Parks

Aug 16, 2017
National Park Service

Bugling elk, rolling thunder, the delicate trill of a hummingbird’s wings. These natural sounds can be heard in America’s national parks—some of the quietest places on Earth. 


Melissa Sevigny

The Grand Canyon’s North Rim is overrun with bison. They trample wetlands and lake shores and devour the grass. That’s changing the ecosystem, a situation that’s been building for more than a decade… Now the National Park Service intends to do something about it. KNAU's Melissa Sevigny reports.

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