The History of Life on Earth

1
The History of Life on Earth

• Earth 4.6 BYA
• Prokaryotes 3.8 BYA
• Eukaryotes 2.0 BYA
• First Animals 635 MYA

2
Stanley Miller Experiment

• Origins of Life

3
Domains
4
Domains vs. Kingdoms

• Kingdoms
• Based on Cellular information
• Domains
• Based on Molecular information

5
Domain Bacteria
6
Domain Archaea

• Carl Woese Prokaryotic cell but similar to
  Eukaryotes in DNA replication and Protein
  synthesis

7
Domain Eukarya

• Protista kingdom divided into many different
  kingdoms

8
Kingdom - Protista
9
Kingdom Plantae
10
Charophytes
11
Division Bryophyta
12
Division Pterophyta
13
Gymnosperms
14
Angiosperms
15
Kingdom Fungi
16
Kingdom Animalia
17
Phylum Arthropoda
18
Animals Move onto Land

• Lungs
• Limbs

19
Animals Move onto Land

• Tiktaalik

20
Amniotic Egg
21
Amniotic Egg
22
Class Reptilia
23
Class Aves
24
Class Mammalia

• Monotremes
• Marsupials
• Placental

25
Class Mammalia

• Primates

26
Class Mammalia
27
Class Mammalia
28
Class Mammalia
29
Class Mammalia
30
Class Mammalia

• Early hominid?
• (6-7 mya)

31
Class Mammalia

• Early hominids
• Lucy (3 mya)
• H. ergaster (1.7 mya) human ancestor
• Neantherthal Lived with modern humans???

32
Modern Humans

• 40,000 years ago