The bird is a descendant of the Indian Ocean, but every time it has re-evolved back into existence
The bird is a descendant of the species roaming the atoll of Aldabra, according to the University of Portsmouth and Natural History Museum.
White-throated rails are located in Madagascar in all directions. Those who landed on Aldabra eventually evolved to become flightless due to the lack of any predators. However, that the evolutionary stages of the earth have been broken down. 19665. But in the resulting fossil record Over-time, white-throated rails would repopulate the island and re-evolve into the flightless Aldabra rail that are now thriving.
"These unique fossils provide irrefutable evidence that a member of the rail colonized the atoll, most likely from Madagascar , and became flightless independently on each occasion, "Dr. Julian Hume, the lead researcher of the Natural History Museum, said in a statement.
Researcher compares the bones of a fossilized rail from before the event with bones from a
"Conditions were searched for on Aldabra, the most important of which is the absence of terrestrial predators and competing mammals University of Portsmouth Professor David Martill and co-author of the study said in a statement.
The study published Wednesday in the Zoological Journal of the Linnean Society.
The Aldabra rail is an exceptional example of a very rare phenomenon known as "iter ative evolution, "or the repeat evolution of a species from the same ancestor at different times in history, Martill added.
" We know of no other example in rails, or of birds in general, thus demonstrating this phenomenon evidently, "he said.