Darwin's Theory of Evolution
Darwin proposed a theory of evolution based on his observations of finches in the Galapogos:
- Organisms produce more offspring than survive into adulthood.
- There was variation in the individuals of a aspecies and their offspring.
- There is a struggle for existance - those organisms best suited to the environment survive the longest and have mor offspring, passing on the more beneficial characteristics. This is known as the survival of the fittest.
- He called this process Natural Selection because he suggested that nature is selecting which characteristics are the most sucessful.
- He believed that after many generations, the characteristics in a population would have changed so much that we would consider the organisms to have become a new species.
Accepting Darwin's Ideas
At first, Darwins ideas were challenged and not accepted:
- Because he had no evidence
- They had no knowledge of species
- Religion had an important place…