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Back from the Dead - Twice
May 14 , 2019
2095 days
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- The bird Aldabra white-throated rail has rebirthed itself twice after going extinct some 1,36,000 years ago.
- Scientists have termed it iterative evolution.
- It means the repeated evolution of similar or parallel structures from the same ancestor, but at different times.
- It is a chicken sized flightless bird that lives in Indian ocean’s Aldabra atoll.
- It is indigenous to Madagascar but the fossil of the bird was found in distant Aldabra atoll during
- two different time periods
- each separated by many thousands of years.
- The unique and oldest paleontological record of Aldabra combines with fossil evidence, demonstrates the effects of changing sea levels on extinction and recolonization events.
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