Req 2 — Classifying Mammals

A raccoon, a moose, and a bat do not look much alike, but classification helps scientists explain why they are still related. Taxonomy is the system used to organize living things into groups based on shared traits and evolutionary relationships. In Mammal Study, classification helps you move from general observations to precise identification.

The Main Classification Levels

A common school-level sequence is:

• Kingdom
• Phylum
• Class
• Order
• Family
• Genus
• Species

As you move down the list, each group gets narrower and more specific.

Where Mammals Fit

Mammals fit into animal classification like this:

• Kingdom: Animalia
• Phylum: Chordata
• Class: Mammalia

That means mammals are animals, they belong to the phylum that includes animals with a notochord or backbone-related structure, and they are one class within that phylum.

From there, mammals split into many orders such as:

• Carnivora — dogs, cats, bears, raccoons, seals
• Rodentia — mice, rats, squirrels, beavers, porcupines
• Chiroptera — bats
• Lagomorpha — rabbits and hares
• Artiodactyla — deer, elk, bison, pigs, antelope
• Primates — humans, monkeys, apes

Three Example Classifications

You will probably choose mammals that live in or near your own area, but these examples show what a full classification looks like.

How to Classify Your Own Three Mammals

Step 1: Pick mammals you can actually research well

Choose species with reliable sources. Local field guides, state wildlife agency pages, museum collections, and university resources are strong choices.

Step 2: Start with the easy shared levels

If your animal is definitely a mammal, the first three levels are usually the same:

• Kingdom Animalia
• Phylum Chordata
• Class Mammalia

Step 3: Find the exact order, family, genus, and species

This is where careful research matters. A coyote and a fox are both in order Carnivora, but not in the same genus. A deer mouse and a house mouse may look similar, but they are not the same species.

Step 4: Write scientific names correctly

Scientific names use two parts:

• Genus capitalized
• species lowercase

They are usually italicized in print, like Canis latrans for coyote.

Why Classification Matters in Real Life

Classification is not just memorization. It helps people:

• compare animals with similar body plans
• predict behavior or diet from related groups
• understand disease and parasite relationships
• track endangered species accurately
• organize museum and wildlife records

In Req 3c and Req 4c, good classification will make your life-history work much stronger because it helps you put one species in the right biological context.

Official Resources

These official resources are best used to reinforce the structure of classification and to help you verify the three mammals you choose.

Classification gives you the map. Next, you will choose a field-study path that lets you use those ideas with real mammals or real mammal evidence.