Giant stork fossils found
Source: Agencies |
December 12, 2010, Sunday
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Print Edition
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FOSSILS of a giant stork have been discovered on a far-flung Indonesian island that has been home to many extreme-sized creatures - from tiny human-like "hobbits" and dwarf elephants to the world's largest-known rats and lizards.
Authors Hanneke Meijer and Rokus Due wrote in the December issue of the Zoological Journal of the Linnean Society that leg bones from the marabou stork, which lived 20,000 to 50,000 years ago, indicate it stood around 180 centimeters tall and weighed up to 16 kilograms.
It appears to have been primarily land-based.
The bones were found during excavations of the Liang Bua cave in the west of the island of Flores.
Flores, located on Indonesia's eastern edge, has never been connected to another island or mainland, shaping evolution of historic wildlife, with many small-sized warm blooded animals growing larger than elsewhere on the planet, and big-sized mammals becoming more diminutive, said Colin Groves, of Australian National University who was not related to the study, citing the so-called "island rule" in biology.
With no mammalian carnivores, birds and reptiles faced less competition for food, accounting for some of their massive size.
Even today, rats more than 40 centimeters from head to body can be found on Flores. It is also home to Komodo dragons, the largest lizards on earth, which grow to be up to 3 meters long, weighing up to 70 kilograms. At the same time, food scarcities may have contributed to reduced sizes of elephants and others.
Authors Hanneke Meijer and Rokus Due wrote in the December issue of the Zoological Journal of the Linnean Society that leg bones from the marabou stork, which lived 20,000 to 50,000 years ago, indicate it stood around 180 centimeters tall and weighed up to 16 kilograms.
It appears to have been primarily land-based.
The bones were found during excavations of the Liang Bua cave in the west of the island of Flores.
Flores, located on Indonesia's eastern edge, has never been connected to another island or mainland, shaping evolution of historic wildlife, with many small-sized warm blooded animals growing larger than elsewhere on the planet, and big-sized mammals becoming more diminutive, said Colin Groves, of Australian National University who was not related to the study, citing the so-called "island rule" in biology.
With no mammalian carnivores, birds and reptiles faced less competition for food, accounting for some of their massive size.
Even today, rats more than 40 centimeters from head to body can be found on Flores. It is also home to Komodo dragons, the largest lizards on earth, which grow to be up to 3 meters long, weighing up to 70 kilograms. At the same time, food scarcities may have contributed to reduced sizes of elephants and others.
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