Students demonstrate understanding of what the fur trade was and how it was operated, including the bartering process, by participating in a mock trade activity and assessing the value of items based on their needs and wants.

Students study the Exxon Valdez Oil Spill while evaluating oil spill clean up activities. They discover the long term impact can have on an ecosystem by completing this experiment.

Meet the North American River Otter and discover fascinating facts and statistics. Learn about its physical characteristics, habitat, diet, behavior, breeding patterns, conservation, and more.

This multimedia article reveals the natural history of otters. The facts, maps, and video and audio clips are perfect resources for research.

Meet the North American river otter, discover fascinating facts, and learn about their physical characteristics, diet, habitat, behavior, and conservation status.

This site gives an in-depth description of a otter, including its behavior, appearance, reproduction, and classification. The site includes photos and illustrations and an interactive quiz to test your understanding.

Familiarize yourself with the North American river otter by browsing this brief overview from the Brookfield Zoo. This animal guide includes quick facts and information on the appearance, habitat, social and eating habits, and other...

Meet the river otter and discover details about its behavior, eating habits, range, conservation status, and other unique facts.

River Otters can be thought of - and in a very real sense are - semi-aquatic weasels. Like fishers, martens, and mink, they have long, slender bodies, short limbs, and a short face, plus a set of adaptations for their aquatic lifestyle:...

Discover fun facts and learn about the habitat, diet, behavior, and appearance of the North American river otter.

Enter the world of the river otter and learn about conservation efforts at Florida's St. Johns River system. Meet Raleigh Otter and learn about his habitat and daily activities. Includes facts about otters and links to coloring pages and...

Use this site to learn more about this playful member of the weasel family through this detailed fact sheet and these wonderful photos.

Home of the State of Indiana's Division of Wildlife. This resource is small, but does offer a photo gallery and some information about the animals that can be found in Indiana. It also gives information about three current restoration...

A great site with something for all grades. Do research on rainforests, follow field research on animals in Latin America, and show what you know through interactive assessments. Lots to see on this site which is a collaboration of...

Learn all about the diverse species that live in the Florida Springs. Separate sections for fish, reptiles and amphibians, birds and mammals, insects and invertebrates, and plants.

Wetland ecosystems are extremely valuable to wildlife, supporting a greater number of animals than any other type of habitat. Wetlands also absorb flood waters; filter chemicals, sediments, and other impurities out of drinking water;...

Details Russian expansion across Asia, over the Bering Strait to Alaska, and then down the coast to California. Their settlement, relations with the Spanish, life in Ft. Ross, and departure are chronicled here.

The Central Suriname Nature Reserve comprises 1.6 million ha of primary tropical forest of west-central Suriname. It protects the upper watershed of the Coppename River and the headwaters of the Lucie, Oost, Zuid, Saramaccz, and Gran Rio...