There are a lot of flightless birds in the world. But there used to be many, many more. During the age of megafauna, giant flightless birds were everywhere, on every continent.
And that raises the question: how are they all related?
There are a lot of flightless birds in the world. But there used to be many, many more. During the age of megafauna, giant flightless birds were everywhere, on every continent.
And that raises the question: how are they all related?
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