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Why Did the Moa Go Extinct? The Overkill of New Zealand's Giant Bird

Imagine a land where the tallest creatures are not deer or bears, but birds standing up to 3.6 meters high—that was ancient Aotearoa (New Zealand), home to the spectacular Moa (Dinornithiformes). These colossal, flightless birds represented a diverse family, ranging from the massive South Island Giant Moa (Dinornis robustus) to the smaller, turkey-sized Bush Moa (Anomalopteryx didiformis). Yet, in one of the most rapid megafaunal collapses ever documented, this entire lineage was wiped out soon after human arrival. The scientific consensus today is overwhelming: the Moa was driven to extinction by the first Polynesian settlers, the ancestors of the Maori, in an event known as the Overkill Hypothesis. Here is the story of their demise: the reasons they were so...

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