Two manatee nuzzling noses together in Crystal River National Wildlife Refuge. Note scars on back on one manatee from boat propeller. For more information about manatees visit
Manatee playing with a crab trap line in Crystal River National Wildlife Refuge. Trap lines pose a common danger of entrapment for manatee.
For more information about manatees visit
Environmental Sciences; Aerial photography; Contaminants; Environmental quality; Erosion; Human impacts; Industries; Mineral industry; Mining; Pollutants; Pollution, Water; Public policies; Rivers and streams; Soil degradation; Water pollution;
Aerial view of sand and gravel mine at edge of river, showing environmental damage hidden from public view by tree lines, and siltation of river due to runoff and erosion. Near towns of Hartland and Plainfield, Vermont.
Wildlife refuges; Transportation; Logo; Human impacts;
Picture shows a rusted truck with a service logo. The Arctic National Wildlife Refuge, a vast and beautiful wilderness, is an intact continuum of six different ecological zones spanning some 200 miles north to south. Such a diverse spectrum of...