Still Waters Posted January 4 #1 Share Posted January 4 (IP: Staff) · The largest flightless bird found anywhere in the world today is the ostrich. It stands about 2.5 metres tall and can weigh up to 240kg. But millions of years ago ostriches would have been dwarfed by several other flightless bird species. One was Dromornis stirtoni, nicknamed the thunderbird. It lived in the late Miocene period of Australia, about 8 million years ago. Another, Vorombe titan, lived far more recently in Madagascar, off the coast of southern Africa. It is thought to have gone extinct in the 17th century after encountering humans. Fossil finds suggest that both species stood about 3 metres tall and were more than double the mass of ostriches. Today all that remains of these birds are their fossilised bones and, in the case of Vorombe titan, a handful of eggs. This means that scientists know very little about the birds’ biology; for instance, the physical differences between male and female Dromornis stirtoni were unclear – until now. https://theconversation.com/putting-the-bones-of-giant-extinct-thunderbirds-under-the-microscope-reveals-how-they-grew-193346 6 Top Link to comment Share on other sites More sharing options...
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