1. Classification

2. Classification
The organization of species into groups based on their characteristics
Taxonomy = the science of classification

3. Classification 2+ million DESCRIBED species
10 to 50+ million species estimated on Earth
ALL organisms placed into one of 3 domains
Each domain is made up of kingdoms
Each kingdom is broken down into smaller phyla

4. Domain 1: Bacteria I. Bacteria: Most of the Known Prokaryotes
29+ accepted phyla of bacteria
# growing with improved methods of identifying bacteria

5. Domain 2: Archaea II. Archaea: Prokaryotes of Extreme Environments
Crenarchaeota: Thermophiles Euryarchaeota: Methanogens & Halophiles Korarchaeota: Some Hot Springs Microbes

6. Domain 3: Eukarya III. Eukarya: Eukaryotic Cells
Kingdom Protista—single-celled critters and algae Kingdom Fungi—molds, mushrooms, yeast, etc. Kingdom Plantae—plants Kingdom Animalia—animals

7. Phylogenetic tree showing the diversity of bacteria, compared to other organisms. Eukaryotes are colored red, archaea green and bacteria blue.
Ciccarelli FD, Doerks T, von Mering C, Creevey CJ, Snel B, Bork P (2006). "Toward automatic reconstruction of a highly resolved tree of life". Science 311 (5765): 1283–7

8. 6 Kingdoms Archaea Eubacteria Protista Fungi Plantae Animalia
prokaryotes
eukaryotes

9. Classification hierarchy
Dear
King
Phillip
Calls
Out
For
Good
Soup
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

10. Timber wolf Canis lupus L. Domain: Eukarya Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Canis
Specific epithet: lupus

11. L = Linnaeus Swedish botanist, Carolus Linnaeus 1707-1778
Developed the current classification system

12. Scientific names Unique to each species
2 parts to each scientific name
Genus
Specific epithet
Written in Latin
Generally have a meaning—describes the species

13. Scientific names Example: mountain lion cougar klandagi puma
cat of one color
panther
concolor
cat of many names
tyger
cuguacuarana
ko-icto
painter
catamount
ghost walker
leopardo
koe-ishto
el leon

14. Scientific names scientific name Example: mountain lion
Scientific name: Puma concolor
genus
specific
epithet
scientific name

15. Scientific names But there’s more!!!
Caretta caretta = loggerhead sea turtle
But…there are different populations of C. caretta around the world—and they have slightly different characteristics.
Atlantic loggerhead = Caretta caretta caretta
Pacific loggerhead = Caretta caretta gigas

16. Dichotomous keys

17. Dichotomous keys