[Free Registration/Login may be required to access all resource tools.] Traditionally, mammals were divided into groups based on their characteristics. Scientists took into consideration their anatomy, their habitats, and their feeding...

[Free Registration/Login may be required to access all resource tools.] Overview of how placental mammals are classified.

Understand how all mammals are divided into groups by similar characteristics.

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

Wikipedia, an open-source encyclopedia, provides great information on mammals. Content includes a look at mammal characteristics, origins, classification, and more.

Explore the classification and evolution of mammals.

This comprehensive site defines mammals in general and then focuses specifically on mammals found in southeastern Michigan. A complete description is given of each mammal along with pictures, sounds, specimens, and classification...

Decide whether an animal is an amphibian, insect, mammal or reptile with this interactive classification game.

This lesson serves as an introduction to classification. The young scholars will place animals into its proper vertebrate group according to certain characteristics that the animals have in common.

[Free Registration/Login may be required to access all resource tools.] Presents an overview of the major animals groups (mammals, birds, reptiles, amphibians, fish, arthropods, vertebrates, invertebrates, those having live births and...

Learn about the similar characterics shared by all mammals. Includes a list of the orders of mammals as well as an example of a mammal classification.

[Free Registration/Login may be required to access all resource tools.] Covers the nine classes of vertebrates and their distinguishing traits.

Background information about all of the classes of the animal kingdom, followed by four short lesson plan outlines.

Twelve mammal baby pictures are displayed in this resource. If you roll your mouse over a picture you can see the adult version of the same animal.

Outlines the characteristics of the killer whale, including classification, habitat, behaviors, and conservation. Helps students identify with whales with a list of "Books for Young Readers." Information at a level of upper intermediate...

Resource provides information about leopard seals, such as habitat, classification, diet, etc.

This brief article defines "placental mammals," lists examples of these animals, and describes the characteristics which render their classification.

Learn about the natural history of the zebra in text and images, a relative of the horse that inhabits the Serengeti in East Africa and other parts of Africa.

Get the facts about Bowhead whales. Besides finding detailed physical descriptions of these mammals of the sea, you'll also learn about some of their unique facts and characteristics. Also included in this Mammal Fact Sheet on Bowhead...

Nice informational site about the order Carnivora. The opening page lists members of the order and briefly describes relationships between humans and carnivores. It links to pages on evolution of carnivores, the ecological roles of...

Get the facts about caribou. Besides finding a detailed description of the caribou, you will also learn about some of their unique facts and characteristics. Also included in this Mammal Fact Sheet on caribou is information on their...

Get the facts about the Canada Lynx. Besides finding a detailed description of this predatory feline, you'll also learn about some of its unique facts and characteristics. Also included in this Mammal Fact Sheet on Canada Lynx is...

Get the facts about cougars. Besides finding a detailed description of the cougar, you?ll also learn about some of its unique facts and characteristics. Also included in this Mammal Fact Sheet on cougars is information on their habitat...

What do you want to know about the gray fox? This site features information on this mammal's behavior, characteristics, diet, habitat, life cycle, and range. Come and learn more about this fascinating type of dog.