This is the homepage of the Arctic National Wildlife Refuge (ANWR). Materials available here include information for visitors, refuge history and culture, information on the refuge's oil and gas resources. There is also extensive information on wild lands and wildlife, including caribou, bears, moose, wolves, and muskoxen, among others. Caribou calving maps, caribou movements, polar bear and muskox ... Full description.

This website about South Florida water, ecosystems, and animals offers information and activities for primary through middle school children. It includes present and past flow patterns and plans to restore the ecosystem; brief descriptions of coral reefs, dunes, marshes, swamps, hardwood hammocks (thick stands of hardwood trees on slight rises in wetlands), mangroves, pinelands and scrubs (pinewood ... Full description.

This Discovery Channel interactive feature allows users to go back in time and watch the North American continent change and its creatures evolve. The feature begins with a map from which users can select a location or time period and see what the dinosaurs and their habitats were like. Other features include "Meet The Old Neighbors", in which students can enter their ZIP codes and learn which dinosaurs ... Full description.

This Discovery Channel feature offers an image gallery showing how perceptions of Tyrannosaurus rex' appearance have changed over time and a feature story discussing evidence suggesting that T.rex may have been a scavenger of the Late Cretaceous rather than a hunter. There is also information on paleontologist Jack Horner and his project at the Hell Creek Formation in Montana, with several videos ... Full description.

This site offers links to current volcanic activity reports, volcanic hazards mitigation, information on Central American volcanoes, remote sensing of volcanoes, volcanologic research in online journals, and more. There are also links to a site with information on becoming a volcanologist, and a comics page of volcano humor. Full description.

This space and astronomy guide, from the University of Leicester, England, presents information on the Solar System, the nine planets, stars, galaxies (including the Milky Way), nebulae, comets, asteroids, meteorites, the universe, and space missions (such as the International Space Station and interplanetary probes). There is also information on some of the first astronauts and cosmonauts. The International ... Full description.

This is an electronic version of an historical NASA (National Aeronautics and Space Administration) publication, written by members of the Apollo program, containing information about the history and accomplishments of NASA's Apollo space program. Beginning with pre-space years and the first man in flight from the USSR, this publication looks into the beginnings of the Apollo space program and the ... Full description.

This National Park Service website offers descriptions of: the animal fossils found at this park, including the extinct Hagerman horse; the geology of the park which is mostly floodplain sediments of primarily silty clays; and the geological, hydrological, and hydrostratigraphical aspects of a landslide model. There are photos of park landslides, prehistoric projectile points, and the historical Oregon ... Full description.

This database provides access to information about dinosaurs. The reference area is searchable by genus, species, author, or year. Reference information includes a description of the dinosaur's name, information on its discovery, and some statistics (length, weight, diet, time span of the species). There is also a taxonomic classification, a brief description of the dinosaur, an an image (where available). ... Full description.

This website discusses animals of the past and present in the state of Illinois, including a discussion of what happened to the dinosaurs, animals in Illinois 65 million years ago and 10,000 years ago, and those present today. Related activities are also provided. Full description.