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10 déc. 2010

[Article] Giant fossil bird found on 'hobbit' island of Flores.

Tuesday, 7 December 2010 | BBC Earth News | By Emma Brennand

A giant marabou stork has been discovered on an island once home to human-like 'hobbits'.

Fossils of the bird were discovered on the Indonesian island of Flores, a place previously famed for the discovery of Homo floresiensis, a small hominin species closely related to modern humans.
The stork may have been capable of hunting and eating juvenile members of this hominin species, say researchers who made the discovery, though there is no direct evidence the birds did so.
The finding, reported in the Zoological Journal of the Linnean Society, also helps explain how prehistoric wildlife adapted to living on islands.

Artist’s impression of the size of the giant stork next to a Homo floresiensis hobbit
Tall and heavy

The new species of giant stork, named Leptoptilos robustus, stood 1.8m tall and weighed up to 16kg researchers estimate, making it taller and much heavier than living stork species.
Palaeontologist Hanneke Meijer of the Smithsonian National Museum of Natural History in Washington DC, and affiliated to the National Museum of Natural History in Leiden, the Netherlands, made the discovery with colleague Dr Rokus Due of the National Center for Archaeology in Jakarta, Indonesia.
They found fossilised fragments of four leg bones in the Liang Bua caves on the island of Flores.
The bones, thought to be belong to a single stork, are between 20,000 to 50,000 years old, having been found in sediments dating to that age.
The giant bird is the latest extreme-sized species to be discovered once living on the island, which was home to dwarf elephants, giant rats and out-sized lizards, as well as humans of small stature.
"I noticed the giant stork bones for the first time in Jakarta, as they stood out from the rest of the smaller bird bones. Finding large birds of prey is common on islands, but I wasn't expecting to find a giant marabou stork," Dr Meijer told the BBC.
Only fragments of wing bones were found, but the researchers suspect the giant stork rarely, if at all, took flight.

[ Read the full article here ... ]

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