Normal decay, Fossilisation, The fish dies and floats, The fish is eaten by other fish and bacteria, The bones of the fish fall apart and decay away until nothing is left, The fish dies and sinks to the bottom of the sea, The fish's body does not decay and is not eaten, it starts to be covered by mud, The fish is almost completely covered by mud, Over millions of years the bones of the fish become mineralised and it has formed a fossil in the rock.

Fossil comic

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