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: In [[animal|animals]] it is usually only the bone that becomes a '''fossil'''.
===Evidence of Evolution===
: [[Fossil]]s show us many creatures that do not exist anymore.
{| class="wikitable"
|-
|[[File:HorseFossil4.png|center|300px]]
|[[File:HorseFossil3.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |
: Modern horse fossils are only found in rocks younger than 5 million years old.
| style="height:20px; width:300px; text-align:center;" |
: This fossil comes from 7 million year old rocks.
: You do not find modern horse fossils in rocks this age.
|-
|[[File:HorseFossil2.png|center|300px]]
|[[File:HorseFossil1.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |This fossil comes from 12 million year old rocks.
| style="height:20px; width:300px; text-align:center;" |
: This fossil comes from 34 million year old rocks.
: The ancestors of modern horses were the size of dogs.
|}
==Key Stage 3==
The remains of a dead creature that have been turned into [[rock]] over millions of years.