1. Fossils and Evolution

2. Amazing Events in Life History
Sex - Who Needs It?
We are a team - Mitochondria
The Great Freeze m.y. ago
What survived and how?
Mass Extinctions
Dinosaurs = 4th worst
Permian extinction (220 m.y. ago) took out 90% of all species

3. Mass Extinctions

4. Classification of Dogs and Humans
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Carnivora (Dogs) Primates (Humans)
Family Canidae Hominidae
Genus Canis Homo
Species familiaris sapiens

5. Strigiphilus garylarsoni
“Actually, I considered this an extreme honor. Besides, I knew no one was going to write and ask to name a new species of swan after me. You have to grab these opportunities when they come along.”
Strigiphilus garylarsoni

6. The Five Kingdom System
Animals
Plants
Protista (one-celled organisms)
Fungi
Bacteria*
Ediacaran Fossils? (ca. 700 m.y. ago)

7. What’s Bigger Than a Kingdom?
Bacteria differ from all other kingdoms in lacking a cell nucleus
We need a bigger box
Superkingdoms or Domains
Monera (Bacteria)
Archaea
Eukarya (have cell nucleus)
Need electron microscopes and molecular biology to see differences