An extinct bird species has evolved back into existence, study says

A previously extinct species of bird has re-evolved back into existence, according to a new study. The Aldabra rail first went extinct around 136,000 years ago. Now, it's reclaimed its home island. According to a study published Wednesday in the Zoological Journal of the Linnean Society, a peer-reviewed scientific journal, sediments from the Aldabra Atoll in the Indian Ocean show that the island has been completely submerged multiple times, wiping out all species inhabiting it.

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