Summary

Today, we’re talking about bird species that are way, way bigger than your average chickadee or finch.

Our focus will be on evolutionary lineages that spawned some very large bird species. Species whose ancestors had been much smaller, millions of years earlier.

We’ll look at a bunch of interesting giant birds throughout history. Then we’ll talk about some scientific explanations for why these critters got so big in the first place.

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Links of Interest

• The Time Terror Birds Invaded [Video]
• Takahe - Return to the Wild [Video]
• Island Gigantism

Research Citations

• The Distribution of Body Sizes of the World's Bird Species
• The island rule explains consistent patterns of body size evolution in terrestrial vertebrates

Photos/Illustrations of Giant Birds

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