The only bird humans bred until it lost the ability to fly
In short: While many birds evolved to be flightless naturally, the parlor roller is a unique case of selective breeding. This video explores how humans shaped this species until it lost a fundamental avian trait.
The parlor roller represents a distinct biological anomaly: a bird that became flightless not through natural selection, but through human intervention. Unlike ostriches or penguins, which adapted to land or water over millennia, the parlor roller was selectively bred by humans until it no longer possessed the ability to fly.
This transformation highlights the profound impact of domestication on avian physiology. It serves as a case study in how human preferences can override millions of years of evolutionary biology, creating a unique niche for a bird that exists solely within human environments.
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Sources
- Summary by Intellect · source: The Curious Case of the Backflipping Bird: The Parlor Roller
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