OBSERVATIONS All creatures have common characteristics Evidence: DNA

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Presentation transcript:

OBSERVATIONS All creatures have common characteristics Evidence: DNA comparing anatomy study the embryos

OBSERVATIONS The Earth is very old Evidence: radioactive dating of rocks

OBSERVATIONS Creatures have changed over time Evidence: the fossil record

The Fossil Record direwolf Many creatures that lived in the past don’t exist today The creatures alive today haven’t always been around Many creatures in the past looked like living ones we see today direwolf

Putting It Together Many different species alive today All life shares common characteristics The Earth is very old Life is very old Life has changed over time The changes have been little changes over long periods of time

We Can See Evolution Happen! Bacteria Strains Artificial Selection

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