Theo Greenly (KUCB-Unalaska)

Rats bring a list of challenges to the islands. One: They’re a threat to birds. The federal refuge that Delehanty manages consists of nearly five million acres of land and thousands of islands, where more seabirds breed than all of the rest of the United States and Canada combined.

Researchers looking into the decline of Steller sea lions over the last decade noticed that the concentration of mercury levels in lion pups was increasing in some parts of the Aleutian Islands — but they didn’t know why.

Unalaska City Council votes to support partial tax exemption for tribal governments

M/V Tustumena won’t sail Aleutian chain until July

The Army Corps of Engineers is moving closer to dealing with a contaminated World War II-era military site long abandoned in the Aleutian Islands.