Darwin, Inheritance, and Genes

<aside> ❓ What produces biological diversity?

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Early Thinkers

Aristotle (4th c. BCE)

• Aristotle thinks about the relationship to humans to animals
• Thinks of animals as one step higher than planets
• Behaviors that are more similar to humans are ranked higher on his list

Al-Jahiz (9th c. CE)

• Islamic sholar
• Thinks that humans do not differ from animals

Ibn Khaldun (15th c. CE)

• Saw that there are small changes that occur in animals over time

• Sees that there is a force that shapes the way animals look (environment)

• All understand that the environment plays a role

Creation Theory

• Creation theory is very popular
• Life has been present from the beginning
• No pathway for change