The History of Life on Earth
Earth – 4.6 BYA
Prokaryotes – 3.8 BYA
Eukaryotes – 2.0 BYA
First Animals – 635 MYA
Stanley Miller Experiment
Origins of Life
Domains vs. Kingdoms
KingdomsBased on Cellular information
DomainsBased on Molecular information
Domain: Archaea
Carl Woese – Prokaryotic cell but similar to Eukaryotes in DNA replication and Protein synthesis
Domain: Eukarya
Protista – kingdom divided into many different kingdoms
“Kingdom” - Protista
Division: Bryophyta
Division: Pterophyta
Kingdom: Animalia
Phylum: Arthropoda
Animals Move onto Land
Lungs
Limbs
Animals Move onto Land
Tiktaalik
Class: Mammalia
Monotremes
Marsupials
Placental
Class: Mammalia
Primates
Class: Mammalia
Early hominid?
(6-7 mya)
Class: Mammalia
Early hominids Lucy (3 mya)
H. ergaster (1.7 mya) – human ancestor
Neantherthal – Lived with modern humans???
Modern Humans
40,000 years ago