Groups KINGDOM largest PHYLUM CLASS ORDER FAMILY GENUS

Groups • • KINGDOM (largest) PHYLUM CLASS ORDER FAMILY GENUS SPECIES (smallest)

Specific Small Broad Large Taxon

Example Human Cougar Tiger Pintail Duck Kingdom Animalia Phylum Chordata Class Mammalia Aves Order Primate Family Carnivora Anserifor mes Homindae Felidae Anatidae Genus Homo Felis Panthera Anas Species sapiens concolor tigris acuta

Cladogram

What is a cladogram? • A cladogram is a diagram used in cladistics which shows relations among organisms.

Dichotomous Keys • A dichotomous key is a written set of choices that leads to the name of an organism. • Scientists use these to identify unknown organisms.

Dichotomous Key for Unknown Animals • 1. A. B. Animal is mainly water-dwelling Go to statement 2 Animal is mainly land-dwelling Go to statement 3 2. A. B. Animal has a shell Animal has no shell Great-Logger Turtle Manatee 3. A. B. Main color of the animal is gray Main color of the animal is not gray Go to statement 4 Go to statement 6 4. A. B. Animal has a long, trunk-like nose Animal has a short nose Elephant Go to statement 5 5. A. B. Animal has long ears Animal has short ears 6. A. B. The main color is black The main color is white 7. A. B. Animal has a pointed face Animal has a flat face Rabbit Koala Bear Go to statement 7 Polar Bear Black Bear Chimpanzee

Dichotomous Key for Unknown Animals • 1. A. B. Animal is mainly water-dwelling Go to statement 2 Animal is mainly land-dwelling Go to statement 3 2. A. B. Animal has a shell Animal has no shell Great-Logger Turtle Manatee 3. A. B. Main color of the animal is gray Main color of the animal is not gray Go to statement 4 Go to statement 6 4. A. B. Animal has a long, trunk-like nose Animal has a short nose Elephant Go to statement 5 5. A. B. Animal has long ears Animal has short ears 6. A. B. The main color is black The main color is white 7. A. B. Animal has a pointed face Animal has a flat face Rabbit Koala Bear Go to statement 7 Polar Bear Black Bear Chimpanzee

Hummingb ird Classification: Using a Dichotomous Key Moose Bat Frog Robin Giraffe Grizzly Bear Mallard Duck Beave Bison Sheep Owl kangaroo Rabbit Seal Polar Bear Raccoon Lynx Koala Bea Snake Zebra

Dichotomous Key for Unknown Animals • 1. A. B. Animal is mainly water-dwelling Animal is mainly land-dwelling Go to statement 2 Go to statement 3 2. A. B. Animal has a shell Animal has no shell Great-Logger Turtle Manatee 3. A. B. Main color of the animal is gray Main color of the animal is not gray Go to statement 4 Go to statement 6 4. A. B. Animal has a long, trunk-like nose Animal has a short nose Elephant Go to statement 5 5. A. B. Animal has long ears Animal has short ears Rabbit Koala Bear 6. A. B. The main color is black The main color is white Go to statement 7 Polar Bear 7. A. B. Animal has a pointed face Animal has a flat face Black Bear Chimpanzee