Are spiders related to crabs? Study the order of arthropods with a reading selection about animal diversity. It provides details about each class within the order, as well as vivid pictures and explanatory charts. 

What characterizes animals from plants? General characteristics of the animal kingdom are noted here. Click on Classification for the Kingdom Animalia; clicking on the camera provides pictures of each animal.

Extensive site that contains much information about the various animal phyla. Each phyla gives photos, common examples, scientific names and references. Collection of 1630 websites about bio-diversity.

A great, detailed description of mollusks. Discusses parts of their external and internal anatomy and their functions, and lists several characteristics of mollusks. Tabbed pages include pictures, specimens and classification.

Animal Diversity Web offers a brief overview of centipedes. Classification information is also provided.

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.

In addition to providing detailed information about the cheetah, Animal Diversity Web also offers a wealth of pictures, specimens, and classification information for detailed study.

Animal Diversity Web offers a comprehensive look at monotremes. In addition to a general overview of monotremes, content includes numerous photographs and specimens, and a look at their classification.

Comprehensive information about the rusty crayfish is presented, including the positive and negative economic impacts they have on humans. This page includes excellent photographs and detailed classification information.

Here you can find a detailed description of this jackal, as well as a picture and full classification.

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

Comprehensive information about the northern flying squirrel is presented, including the impact these small animals have on humans. Included are some photographs of northern flying squirrels and detailed classification information.

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...

Comprehensive information about the deer mouse is presented, including the positive and negative economic impacts these small animals have on humans. This page includes excellent photographs of deer mice and detailed classification...

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 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...

Resource provides a general description of marine worms, including sand worms, tube worms and clam worms.

A brief overview of the Salmoniformes Order of fish. These fish are very important to humans economically. Many of them are pictured in the photos on this site.

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...

A species is defined as a single kind of animal, plant or creature. Examples of different species are given and how the many species that exist relate to biodiversity. Scientific naming conventions are introduced.

The Animal Diversity Web offers a page on the Macropus Rufus, or Red Kangaroo. Includes all kinds of information from behavior to history. Use the table of contents for easy navigation.

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

A detailed overview of the ring-necked snake's characteristics, physical features, behavior, and how it lives. Included are photos and classification information.

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