Tag » Ripple

High Alert
April 1, 2007

High Alert

Large carnivores promote healthy ecosystems by keeping browsers on edge

In a remote corner of Zion National Park, a small herd of mule deer browse quietly. Through the sun-dappled canyon burbles North Creek, its waters cool and clear, its banks green and reedy, alive with frogs, butterflies and bird-song. But this pastoral scene in southern Utah has a dark subtext, subtle yet unmistakable in the […]