Birds - Our Feathered-Friends
This world would be a lot less colorful, beautiful and interesting without them!
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This Flightless Aldabra Rails Went Extinct On A Group Of Islands And Then Evolved Again - Flightless Rails disappeared on the Aldabra atoll around 136,000 years ago, but they didn't stay gone. Rails evolving to be flightless twice on the Aldabra atoll is an example of a phenomenon known as Iterative Evolution.