Alaska's coastal and offshore waters provide foraging habitat for an estimated 100 million birds, comprising more than 90 different species. Alaska is earthquake country with four out of five earthquakes in the U.S. occurring in Alaska. The state has 3 million lakes, 3,000 rivers, 170 million acres of wetlands, an estimated 100,000 glaciers, and permafrost throughout the state. Learn more below.
Fish Ear Stones Offer Climate Change Clues

USGS and the NPS collaborate on sharing research for all ages in a special issue of the journal Frontiers for Young Minds that focuses on research in National Parks. For this article, scientists used the growth rings in lake trout ear stones to understand if climate change was influencing how fast the fish grew in Lake Clark National Park and Preserve.
How Beavers Are Changing Arctic Landscapes and Earth's Climate
USGS and the NPS collaborate on sharing research for all ages in a special issue of the journal Frontiers for Young Minds that focuses on research in National Parks. By building dams, beavers are ecosystem engineers that dramatically alter terrestrial and aquatic ecosystems. This article describes the potential impacts and the effect of beavers in the Arctic.