Dodo Birds were on the Earth for approximately one million years. That’s not a particularly long time, as far as species go. To the extreme misfortune of the Dodo Bird species, the last bit of that one million years overlapped humanity's existence on Earth. They were doing just fine until mankind happened to stumble across them and their one and only home… the small island of Mauritius.

So yes… Dodos have existed for the entirety of Man’s existence. But Man has existed only a very small portion of the Dodo’s existence. Unfortunately… that was more than enough time for mankind to do what mankind does best; wipe the Dodo Bird from the face of the Earth.

Stefan Pociask's answer to In what era or time period was the dodo bird alive?