What environmental factor, occurring during the Pliocene and Pleistocene, stressed terror bird populations alongside mammalian competition?

Answer

Significant global cooling and climatic shifts

The Pliocene and Pleistocene epochs brought significant global cooling and climatic shifts, which would have contracted the subtropical and temperate environments where many terror bird species likely thrived.

What environmental factor, occurring during the Pliocene and Pleistocene, stressed terror bird populations alongside mammalian competition?

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What Happened to the Prehistoric "Terror Bird"? | Nature Bites

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