An extinct 136 thousand years ago, the species of birds, the “shepherd’s cows”, was reborn in the Seychelles.

An extinct 136 thousand years ago, the species of birds, the “shepherd’s cows”, was reborn in the Seychelles.


Cuvier dude (Dryolimnas cuvieri) lived on islands where there are practically no predators. This played a very bad joke with one of its types.

The shepherd's is a family of white-throated birds the size of an ordinary hen that inhabit islands in the Indian Ocean. They constantly colonize new isolated islands in the ocean. Such islands, though free from predators, but very often become victims of natural disasters. Birds unable to fly quickly die as a result of this.

One of the shepherd's species had the ability to fly, which allowed him to move to the Seychelles. On these islands, as a result of evolution, the bird lost its ability to fly. However, 136 thousand years ago, the atoll completely covered the ocean after the flood and the view formed there disappeared from the face of the planet.

And now, an extinct bird more than 130 thousand years ago, the shepherd bird species was revived in the Seychelles. This event is due to iterative evolution. An article about opening published in the Zoological Journal of the Linnean Society.

Iterative evolution is a very special case of parallel evolution, which consists in the development of the same species from the same ancestor, but completely at different times. This phenomenon is very, very rare, so all scientists were greatly surprised by the case of the “rebirth” of a bird extinct more than 130 thousand years ago. This is absolutely the first time in nature when iterative evolution has been observed for this particular genus, and one of the most significant examples in the history of all birds of our planet.

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Source text: An extinct 136 thousand years ago, the species of birds, the “shepherd’s cows”, was reborn in the Seychelles.