Mercury's surface in "enhanced color," a color scheme created to emphasize color differences. This is not what Mercury would look like to the human eye, but by applying mathematical analysis to images, color differences can be accentuated beyond those visible to a person.
Mount Rushmore National Memorial under construction.
The workers had to endure conditions that varied from blazing hot to bitterly cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500-foot face of the mountain in a "bosun chair." Despite the dangers, no one was killed during the project.
Otters in Glacier Bay National Park and Preserve, Alaska.
The sea otter population of Glacier Bay has increased dramatically in the past 20 years. Ecologists consider sea otters a keystone species here. Otters consume vast quantities of clams, urchins, crabs, and other invertebrates and their presence creates ripples through the ecosystem. NPS photo.
Every day someone like you becomes a wildland wildfire fighter, a teacher, a trail-builder, a museum curator, or a park ranger. Discover your opportunities in national parks. Come to play. Come to learn. Come to serve. Develop your environmental leadership skills. Find a job. Be the next generation to preserve and protect these great places.
With more than 80% of Americans living in urban areas, urban parks are more important than ever. The father of American landscape architecture, Frederick Law Olmsted, said of urban parks:
It is one great purpose of the Park to supply to the hundreds of thousands of tired workers, who have no opportunity to spend their summers in the country, a specimen of God's handiwork that shall be to them, inexpensively, what a month or two in the White Mountains or the Adirondacks is, at great cost, to those in easier circumstances.
AGRICOLA This is an important bibliographic database of citations to the agricultural literature, and is produced by the National Agricultural Library, USDA.
All About Birds Produced by the Cornell University Laboratory of Ornithology
AmphibiaWeb This site focuses on amphibians, and includes maps, species information, photographs, sound files, and links to other web sites. AmphibiaWeb was created in conjunction with the Digital Library Project at the University of California, Berkeley.
Audubon Guide to North American Birds Entries for each species provide information on conservation status, scientific classification (family, genus, and species), habitat, additional photos, detailed range maps, migration information, and feeding, breeding, habitat, eggs, young, etc. The audio content often includes calls, songs and sub-songs/regional dialects, and colony calls. Those needing more comprehensive information should look at the Cornell Lab of Ornithology Bird Guide, All about Birds.
Avibase: The World's Bird Database Avibase is an extensive database containing over 5 million records about 10,000 species and 22,000 subspecies of birds, including distribution information, taxonomy, synonyms in several languages and more.
BEN: BioSciEdNet Digital Library portal for teaching and learning in the biological sciences. A National Science Digital Library pathway, sponsored by the American Association for the Advancement of Science and funded by the National Science Foundation.
Biodiversity Heritage Library Ten major natural history museum libraries, botanical libraries, and research institutions have joined to form the Biodiversity Heritage Library Project. The group is developing a strategy and operational plan to digitize the published literature of biodiversity held in their respective collections.
Ecology and Society Formerly Conservation Biology, a peer-reviewed journal of integrative science and fundamental policy research
eNature Search the site to identify plant and animal species. The site's core content of wildlife information about almost 6,000 individual species is the same data set used to create the printed Audubon Field Guides.
Encyclopedia of Life An attempt to create an evolving encyclopedia on the Internet, with contributions from scientists and amateurs alike.
Ernst Mayr Library, Harvard University Includes the sections Biology in the News, Natural History at Harvard and Beyond (links to other web sites), and new book lists arranged by scientific discipline.
Freshwater and Marine Image Bank The Freshwater and Marine Image Bank is an ongoing digital collection of images, including early illustrations, related to freshwater and marine topics, in all their diversity. It includes images of fish, shellfish, and marine mammals, pictures of fish hatcheries and dams and vessels, materials related to polar exploration, regional and traditional fisheries, and limnological (freshwater) subjects. Its scope is global. The images were researched and scanned by the staff of the Fisheries-Oceanography Library of the University of Washington.
Hummingbirds.net "your WWW source for information on attracting, watching, feeding, and studying North American hummingbirds"
International Field Guides Compiled by Diane Schmidt, biology librarian at the University of Illinois, this is a a searchable database of field guides for animals, plants, and more from around the world.
NPWRC Online Biological Resources Search for publications on the biota of the Great Plains, sponsored by the Northern Prairie Wildlife Research Center of the U.S. Geological Survey. Includes a pollinator library, and in the near future, specimens in the Herbarium will be digitized and made available in a searchable database.
OdonataCentral This site is designed to make available what is known about the distribution, biogeography, biodiversity, and identification of Odonata (dragonflies and damselflies) world-wide. Produced by the Dragonfly Society of the Americas.
Phylogeny of Life This is a University of California, Berkeley online exhibit that explores the ancestor/descendant relationships which connect all organisms, past and present.
The Reptile Database An online information resource on reptile taxonomy with a focus on the species level
Salmon Collection: Salmon in the Northwest The Salmon Collection contains documents, photographs and other original material describing the roots of the salmon crisis in the Pacific Northwest in the late 19th and early 20th centuries.
SORA: Searchable Ornithological Research Archive An open access electronic journal archive and is the product of a collaboration between the American Ornithologists Union, the Cooper Ornithological Society, the Association of Field Ornithologists, the Wilson Ornithological Society and the University of New Mexico.
VertNet VertNet is a NSF-funded collaborative project that makes biodiversity data free and available on the web. VertNet is a tool designed to help people discover, capture, and publish biodiversity data. It is also the core of a collaboration between hundreds of biocollections that contribute biodiversity data and work together to improve it.
Western Soundscape Archive This site features audio recordings of animals and environments throughout 11 contiguous western states and the Arctic National Wildlife Refuge. Started in 2007, the archive is housed at the University of Utah's J. Willard Marriott Library and features recordings contributed by volunteers, state and federal agencies, and conservation groups. The website offers representative sounds of more than 570 different Western bird species, all of the region's vocalizing frogs and toads, dozens of reptiles and more than 100 different types of mammals. Longer ambient recordings are also available from a wide variety of remote and wild places throughout the West.
WhatBird.com Use the site to identify birds of North America.
Endangered Species Related Laws, Regulations, Policies and Notices Collected by the U.S. Fish and Wildlife Service. The U.S. Fish and Wildlife Service (Service) and the National Oceanic and Atmospheric Administration's National Marine Fisheries Service (NMFS) share responsibility for administration of the Endangered Species Act (ESA). We have issued internal guidance and national policies to promote efficiency and nationwide consistency in implementing the ESA to conserve and recover listed species of plants and animals native to the U.S. and its territories.
Environmental Conservation Online System A product of the U.S. Fish and Wildlife Service. Includes links to lists of all threatened and endangered animals and plants, reclassified species, and delisted species; critical habitats, success stories, information on fish passage, and interactive maps.
Protected Planet Website developed by the World Conservation Monitoring Centre. Protected Planet is the online public interface for the World Database on Protected Areas, the most comprehensive global database on terrestrial and marine protected areas. Protected Planet allows users to discover the world's protected areas through maps, photos and descriptions.