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. 

We all know that the ocean is home to many beautiful and mysterious creatures. Mysterious cannot begin to describe the fish living in the depths of the ocean. Imagine the kind of creature that lives thousands of feet underwater! Sunlight...

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

Wikipedia offers detailed information on mollusks, a large and diverse phylum including shelled sea animals and the octupus.

Explore the world of the cuttlefish, a unique cephalopod. Students will gain a greater understanding of this mollusk through fun facts, information on the anatomy, diet, predators and more at this site.

This site from the Canadian Museum of Nature, a natural history museum, provides short information blurbs and fun facts on over 240 different common animals categorized by type (mammals, fish, reptiles, invertebrates, amphibians,...

What is a reptile? Use this resource to understand the basic facts of all reptiles and click to detailed information on many specific types.

Discover more about how otters live, what they eat and how they socialize when you visit this informative resource. This condensed site will benefit students who need help narrowing their research information.