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    • Zebra mussels on rudder

    • Invasive species; Aquatic environments;
    • Zebra mussels can attach themselves to boats and thereby inadvertantly be transferred to different waterways where they spread. Important for boaters in infected areas to be sure to careful clean their boat hulls/rudders, etc to prevent the spread...
    • Zebra mussel on native mussel

    • Aquatic environments;
    • The zebra mussel was inadvertently introduced to the United States and is now spreading rapidly, impacting native fish species, as well as clogging power plant intakes. Boaters, anglers, and waterfowl hunters can help prevent further spread of...
    • You can't catch me!

    • Children; Connecting people with nature; Coastal environments; Recreation;
    • Young boy runs from the surf.
    • You can see the ocean from here

    • Coastal environments; Environments (Natural); Grasses; Marine environments; Plants; Scenics; Tourism; Vegetation; Wildlife refuges;
    • Dunes line the way to the ocean, inviting visitors for a day at the beach.
    • Yellow wildflower at Tetlin National Wildlife Refuge

    • Flowering plants; Conifers; Wildlife refuges
    • The Alaska Highway is the northern boundary of the 682,604 acre Tetlin Refuge for 65 miles northwest of Alaska-Yukon border. From scenic overlooks you can view wetlands important to breeding waterfowl, and boreal forests and alpine habitats...
    • Yellow flower at Tetlin National Wildlife Refuge

    • Flowering plants; Wildlife refuges; Wildflowers;
    • The Alaska Highway is the northern boundary of the 682,604 acre Tetlin Refuge for 65 miles northwest of Alaska-Yukon border. From scenic overlooks you can view wetlands important to breeding waterfowl, and boreal forests and alpine habitats...
    • Wyoming toads and cattle: at home on the range

    • Aquatic animals; Biologists (USFWS); Extinctions; Endangered species; Amphibians;
    • Biologists feared that the Wyoming toad was extinct until 1987 when a fisherman discovered a population at Mortenson Lake on Swanson’s land. The discovery created excitement about a chance to save the species and its habitat, and it led Swanson...
    • Woody Canaday and Tad Pfeffer oral history transcript

    • Camping; Climbing; Environments (Natural); Forests; Hiking; Mountains; Public access; Biography; Maintenance;
    • Woody Canaday and Tad Pfeffer oral history interview as conducted by Steve Chase. Woody Canaday and Tad Pfeffer share some of the experiences they had while working on the trail and hut crews at the Randolph Mountain Club. For more informaiton...
    • Wood Stork

    • Birds; Endangered species
    • Endangered wood storks are among the many species of wading birds that can be found on Pelican Island National Wildlife Refuge.
    • Wood Bison

    • Mammals; Endangered species;
    • Wood bison are the largest native land mammals in the Western Hemisphere, 10 to 15% heavier than plains bison. Bulls are slightly larger than cows and average around 1,800 pounds, but can get up to 2,000 pounds. Both males and females have short...
    • Woman gathering branches

    • Foliage; Mountains; Native Americans; Trees; Adults; Wildlife refuges;
    • The Alaska Highway is the northern boundary of the 682,604 acre Tetlin Refuge for 65 miles northwest of Alaska-Yukon border. From scenic overlooks you can view wetlands important to breeding waterfowl, and boreal forests and alpine habitats...
    • Winged ambassadors: bird conservation in the Caribbean

    • Birds; Endangered species; Indigenous populations; International affairs; Islands; Threatened species; Work of the Service; Tropical environments
    • This is a fact sheet abou tthe Winged Ambassadors, a conservation initiative of the U.S. Fish and Wildlife Service. The program helps protect the many unique avifauna species endemic to the Caribbean. It briefly explains the situation with these...
    • Winding river through Tetlin National Wildlife Refuge

    • Rivers and streams; Wildlife refuges; Mountains; Tundra; Forests;
    • The Alaska Highway is the northern boundary of the 682,604 acre Tetlin Refuge for 65 miles northwest of Alaska-Yukon border. From scenic overlooks you can view wetlands important to breeding waterfowl, and boreal forests and alpine habitats...

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