Evidence for the Theory of Evolution

The theory of evolution is supported by many kinds of evidence. Here are some key points:

1. Fossil Record:

   • There are over 250,000 different fossil species that we have found.
   • Some fossils, like Archaeopteryx, show how certain creatures are connected through evolution.

2. Genetic Evidence:

   • Humans share about 98% of our DNA with chimpanzees.
   • Similar pieces of DNA help us understand how species are related.

3. Biogeography:

   • The way species are spread out across the world supports the idea of evolution.
   • Islands often have unique species that came from shared ancestors.

4. Observed Evolution:

   • Some species, like the Peppered Moth, show changes that we can see happening right now.
   • The way bacteria can become resistant to medicine shows natural selection is happening.

5. Comparative Anatomy:

   • Similar body parts in different species suggest they have a common ancestor.
   • Some body parts, called vestigial organs, show features that were once useful but are no longer needed.

These pieces of evidence help us understand how all life on Earth has changed and evolved over time.