Darwin and Wallace: The Development of the Theory of Evolution by Natural Selection

The video discusses the development of the theory of evolution by natural selection, primarily proposed by Charles Darwin and Alfred Russell Wallace. It highlights the initial challenges faced by Darwin's theory, including religious opposition and lack of genetic understanding. Wallace's contributions, particularly in speciation, are also covered. The video contrasts Lamarck's earlier theory of acquired characteristics, which was eventually rejected. Over time, with the advancement of genetics, Darwin's theory gained acceptance and became foundational to evolutionary biology.

What was the main focus of Charles Darwin's observations during his world expedition?

• The climate changes in different regions

• The migration patterns of birds

• The similarities and adaptations of species

• The behavior of marine animals

Why was Darwin's theory initially met with skepticism?

• It was not published in a scientific journal

• It was only supported by Wallace

• It lacked sufficient evidence and challenged religious beliefs

• It was too similar to existing theories

What was Alfred Russell Wallace's notable contribution to the theory of evolution?

• He disproved Darwin's theory

• He proposed the idea of acquired characteristics

• He discovered the mechanism of inheritance

• He worked on warning coloration and speciation

How did Wallace and Darwin's relationship influence the development of the theory of evolution?

• They collaborated and supported each other's work

• They disagreed on the concept of natural selection

• They published separate theories

• They were rivals and worked independently

What was the main idea behind Jean Baptiste Lamarck's theory of evolution?

• Genetic mutations lead to evolution

• Natural selection as the driving force

• Acquired characteristics are inherited

• Species remain unchanged over time

Why was Lamarck's theory eventually rejected?

• It was too similar to Darwin's theory

• It lacked experimental support and evidence

• It was proven by genetic evidence

• It was only applicable to plants

How did the discovery of genetics impact the acceptance of Darwin's theory?

• It provided a mechanism for inheritance and variation

• It disproved the concept of natural selection

• It supported Lamarck's ideas

• It had no impact on evolutionary biology