Fossils and EvolutionAmazing Events in Life HistoryMass ExtinctionsClassification of Dogs and HumansStrigiphilus garylarsoniThe Five Kingdom SystemWhat’s Bigger Than a Kingdom?Fossils and EvolutionAmazing Events in Life History•Sex - Who Needs It?•We are a team - Mitochondria•The Great Freeze 900-600 m.y. ago–What survived and how?•Mass Extinctions–Dinosaurs = 4th worst–Permian extinction (220 m.y. ago) took out 90% of all speciesMass ExtinctionsClassification of Dogs and Humans•Kingdom Animalia•Phylum Chordata•Class Mammalia•Order Carnivora (Dogs) Primates (Humans)•Family Canidae Hominidae•Genus Canis Homo•Species familiaris sapiensStrigiphilus 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.”The Five Kingdom System•Animals•Plants•Protista (one-celled organisms)•Fungi•Bacteria*•Ediacaran Fossils? (ca. 700 m.y. ago)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