Ned Rozell, UAF Geophysical Institute

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Signs of the American beaver in Alaska: A cut poplar tree on the upper Tanana River and a dam on Phelan Creek near Isabel Pass in the Alaska Range. Ned Rozell photos.

Beavers slapping tails on far-north waters

Animals the size of Labrador retrievers are changing the face of Alaska, creating new ponds visible from space.“These guys leave a mark,” UAF ecologist...
Chum salmon returning in November to spawn in the Delta River where it meets the Tanana River, about 10 miles north of the town of Delta Junction. Ned Rozell photos.

Salmon complete 1,000-mile journey, and life

MOUTH OF THE DELTA RIVER — On a morning with biting air in the single digits Fahrenheit, this river smells like sulfur and is...

When Jerry Brown came to Nome

A few Alaska researchers recently accepted a surprise assignment of giving Jerry Brown a tour of the Seward Peninsula.The California governor was stopping in...

Biographer profiles scientist-explorer of northeast Alaska

In the early 1990s, Janet Collins was hiking in the Arctic National Wildlife Refuge when she saw “Camp 163” labeled on her map. Intrigued,...

Wolves a defining part of Alaska landscape

The wolf tracks appeared as they always do, as a surprise.On a day between fall and winter, with the leaves fallen and browning but...

Algae’s athletic role in glacier melt

Life exists everywhere you look. Even on glacier ice, home to inch-long worms, snow fleas, bacteria and algae.When gathered by the millions on the...

Finding far-north lynx den part of cycle study

In her study of one of the farthest north lynx populations in North America this summer, Claire Montgomerie used her ears. While looking at...

Hike across Alaska ends with after-dinner bear

A few days ago, Cora the dog and I walked across a footbridge spanning a natural moat flowing through northern tundra plants. There, we...





















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