Theories of evolution

Theories of evolution

1. Not everyone agreed with Darwin...

   • theory went against common religious beliefs about how life on earth developed
     • Darwin couldn't explain why new, useful characteristics appeared and how they were inherited
       • not enough evidence to convince scientists

2. Lamarck had a conflicting theory of evolution

   • theory suggested that if a characteristic was used a lot by an animal it would become more developed.

3. theory of evolution by natural selection is now widely accepted

   • theory has been debated and tested independently by a wide range of scientists
     • no one has proved it wrong
       • plausible explanation for so many observations of plants and animals

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