The Animal Diversity Web provides a general overview of the diverse group of cephalopods, including octopus, squid, nautilus, and cuttlefish.

Part of a larger site on the animal kingdom, this page provides a detailed overview of primates. Click on the various links throughout the page for more descriptions and explanatory pictures.

A good overview of the beaver's characteristics, physical features and how it lives. Included are many good photos and detailed classification information.

Comprehensive reference material on Steller's sea lion: its appearance, habitat, diet, behavior, reproduction, positive and negative economic significance for humans, and conservation status.

An overview of the many types of gastropods, slugs and snails found around the world. Included is a large bank of photos of the various species and their classification information.

Comprehensive information about the red squirrel is presented, including the positive and negative impacts of these small animals on humans. This page also includes excellent photographs of red squirrels and detailed classification...

Comprehensive reference information about the sitatunga, an African antelope, including taxonomic classification, habitat, physical description, and other details.

Comprehensive reference material on the greater kudu, an African mammal, with information about its appearance, habitat, diet, behavior, reproduction, and positive and negative economic importance for humans.

Comprehensive information about the Eastern fox squirrel is presented, including the positive and negative impacts of these small animals on humans. This page also includes excellent photographs of Eastern fox squirrels and detailed...

Lemmings and voles belong to the rodent subfamily Arvicolinae. Comprehensive information about these animals is presented, including the positive and negative economic impacts they have on humans. This page has excellent photographs of...

Excellent information on the Chinchilla lanigera that includes: basic facts, pictures, specimens, habitat, food habits, and classification.

Information on geographic range, habit, physical description, reproduction, lifespan, behavior, methods of communication, diet, predation, economic importance (positive/negative), and conservation status can be be found on this...

Read about the natural history and physical characteristics of tarsius pumilus, one of four species of tarsiers living in the rain forest. Provided by Animal Diversity Web.

Comprehensive reference information about the elusive fisher. Includes taxonomic classification, specimens, pictures, and other details about this solitary predator's relationship with the environment.

Comprehensive note about the giraffe. Includes taxonomic classification, specimens, and other details about this silent, social mammal.

Comprehensive overview of the Eurasian moose, with information about physical characteristics, geographic range, diet, reproduction, behavior, and habitat.

Comprehensive overview of the pronghorn antelope, with information about physical characteristics, geographic range, diet, reproduction, behavior, and habitat.

A detailed overview of the ringtail's characteristics, physical features, diet, behavior, and habitat. Included are some good photos and classification information.

Comprehensive reference material on the American bison: its habitat, physical features, eating habits, reproduction, behavior, communication, roles in a prairie ecosystem, and interactions with humans.

Comprehensive reference material on the northern fur seal: its appearance, habitat, diet, behavior, reproduction, and its economic significance for humans.

Comprehensive reference information about the coyote. Includes taxonomic classification, specimens, and other details about this extremely adaptable and vocal mammal.

Comprehensive reference material on the American beaver, with information about physical characteristics, classification, diet, reproduction, behavior, and habitat.

Detailed information about guerezas, a Columbus monkey found in Africa near the equator: geographic range and habitat, physical features, behavior, reproduction and mating, communication, andn positive and negative economic impact.

Detailed information about the spotted hyena: geographic range and habitat, physical features, mating and other behaviors, lifespan, and positive and negative economic impact on humans.