Week 1 : Historical Development of Theory of Evolution

For the topic on this week, I learn and understand about the terminologies which are speciation, species, evolution, fossil, biodiversity, vestigial structures, homologous body structure, mutations, variations. I also learn about the ideas on evolution prior to Darwin

Ideas on Evolution Prior to Darwin

 ARISTOTLE (384-322)                                         

• Arrange organisms from simple to complex.
• Visualized as not perfect but move to perfectness.

JEAN BAPTISTE LAMARK (1744-1829)

• French naturalist.
• Evolution  occur by inheritance of acquired characteristics.
• Organisms subjected to a external force
• Theory : Evolution of modern giraffe.   

CHARLES LYELL

• Book : 'Principles of Geology'
• Earth must be very old
• Subjected to natural processes in past just like present time
• Erosion, earthquakes, volcanoes
• Idea lead Charles Darwin to understand biological evolution. 

 CHARLES DARWIN

•  All species of life have evolved over time from common ancestors through natural selection.
• The long neck of giraffe due to mutation, variation. 

For week 1 topic, I supposed to publish around 7-13 september. But we haven't been introduced to reflective journal on week 1