This appealing site contains many wonderful photos of vertebrates, invertebrates, and corals found in the Caribbean Sea, Florida Reef, Pacific Reefs, and Red Sea Reefs.

[Free Registration/Login Required] Students will classify organisms into groups and relate how they determined the groups with how and why scientists use classification. They will also demonstrate how animals are sorted into groups...

This site from the University of California, Berkeley contains general information and links to information about the fossil record of birds, the life history of birds, the systematics of birds, and the morphology of birds.

The single-lens eye is found on all vertebrate animals. Learn about the main parts of this eye and the purpose each serves.

The herpes viruses infect many species of vertebrates. This series of animations illustrates the precise mechanism for entering a cell and copying itself. For advanced students.

The museum features online quizzes and exhibits like Kennewick Man, "Mammals of Washington," Amphibians and Reptiles of Washington," archeology, and vertebrate paleontology.

This collection of images of six different creatures, including insects and carnivorous vertebrates, illustrates the wide range of mouth types that exist within the animal kingdom. It also discusses the environment and its impact on the...

Amphibians are cold-blooded, smooth-skinned vertebrates. Most live some of their life in water and some on land. The most common amphibian critter is a frog but there are many others. Read about Wisconsin's many amphibians here.

Wikipedia offers a basic overview of the spinal cord lists the five segments of the vertebrate, discusses the anatomy of the spinal cord, talks about the functions and importance of the spinal cord, and briefly mentions some diseases...

An introduction to Darwin's theory of evolution with hyperlinks to other topics on evolution, including a timeline of evolutionary thought.

Article explaining the basic characteristics of mammals, their diet, reproduction, behavior, conservation concerns, taxonomy, and their evolution. (Published: September 23, 2010)

A site on the disorders of the digestive system and on the similarities and differences between the digestion of birds and ruminants.

The highest category of taxonomic classification is the kingdom. This website from Palomar College presents the five kingdoms in an easy-to-read chart and discusses the Animalia and Plantae kingdoms in depth. After reading through the...

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. There is a large amount of information available about adaptations and their role in evolution.

A great review for understanding life cycles and many aspects of living things. Find topics and their main ideas, vocabulary review, quizzes, and complementary activities for teachers to use.

In this amazingly comprehensive tutorial you will learn about the geological and environmental changes that occurred during the geologic time scale.

Fourth graders will play a review memory game with Utah's Grade 4 Science Standard V vocabulary words during this lesson plan. Words associated with living things and classifications of living things are included in this lesson plan.

A fantastic source of basic zoological information, a great supplement for all animal biology classrooms.

This resource presents extensive information for learning about and teaching evolution including an in depth course "Evolution 101", teaching materials, and a resource library.

[Free Registration/Login may be required to access all resource tools.] Animals are also often identified as being either invertebrates or vertebrates. These are terms based on the skeletons of the animals. Vertebrates have a backbone...

A great reference source for a variety of vertebrate and invertebrate animals. This exhaustive resource also has some prehistoric extinct animals that students can compare to their living counterparts to increase their understanding of...

Learn about birds the only way you can. A bird is a warm-blooded, egg-laying, winged vertebrate that has a body covered with feathers. Find out all about all of the different birds you can here.

How do the animals all around us experience pain? Robyn J. Crook examines pain in both vertebrate and invertebrate animals. [5:06]

Dr. Mary R. Dawson works as a curator in the vertebrate paleontology department at the Carnegie Museum of Natural History. Here she talks about her career and research she has done.