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Researchers have discovered that early Europeans lived alongside birds which were three times larger than ostriches and weighed about 450kg.The newly-discovered specimen, discovered in the Taurida Cave on the northern coast of the Black Sea, suggests a bird as giant as the Madagascan elephant bird or New Zealand moa. It may have been a source of meat, bones, feathers, and eggshell for early humans.It was previously thought that such gigantism in birds only ever existed on the islands of Madagascar and New Zealand as well as Australia."When I first felt the weight of the bird whose thigh bone I was holding in my hand, I thought it must be a Malagasy elephant bird fossil because no birds of this size have ever been reported from Europe. However, the structure of the bone unexpectedly told a different story," said lead author Nikita Zelenkov from the Russian Academy of Sciences.The team of researchers asserted that they don't have enough data yet to say whether it was most closely related to ostriches or to other birds, but according to their estimate, the bird weighed about 450kg. This formidable weight is nearly double the largest moa, three times the largest living bird, the common ostrich, and nearly as much as an adult polar bear."The findings are published in the Journal of Vertebrate Palaeontology.It is the first time a bird of such size has been reported from anywhere in the northern hemisphere. Although the species was previously known, no one ever tried to calculate the size of this mal. The flightless bird, attributed to the species Pachystruthio dmsensis, was probably at least 3.5 metres tall and would have towered above early humans. It may have been flightless but it was also fast.While elephant birds were hampered by their great size when it came to speed, the femur of the current bird was relatively long and slim, suggesting it was a better runner. The femur is comparable to modern ostriches as well as smaller species of moa and terror birds.Speed may have been essential to the bird's survival. Alongside its bones, palaeontologists found fossils of highly-specialised, massive carnivores from the Ice Age. They included giant cheetah, giant hyenas and sabre-toothed cats, which were able to prey on mammoths.Other fossils discovered alongside the specimen, such as bison, help date it to 1.5 to 2 million years ago. A similar range of fossils was discovered at an archaeological site in the town of Dmsi in Georgia, the oldest hominin site outside Africa.Although previously neglected by science, this suggests the giant bird may have been typical of the mals found at the time when the first hominins arrived in Europe. The authors suggest it reached the Black Sea region via the Southern Caucasus and Turkey.The body mass of the bird was reconstructed using calculations from several formulae, based on measurements from the femur bone. Applying these formulae, the body mass of the bird was estimated to be around 450kg.Such gigantism may have originally evolved in response to the environment, which was increasingly arid as the Pleistocene epoch approached. mals with a larger body mass have lower metabolic demands and can therefore make use of less nutritious food growing in open steppes.( With inputs from ANI )

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Researchers have discovered that early Europeans lived alongside birds which were three times larger than ostrich and weighed about 450kg. ...