Giant 500-pound geese once honked around the Australian outback
Australia has always been a biodiversity hotspot, with some gnarly extinct megafauna in its natural history. Enormous, flightless ‘thunder birds’ or mihirungs once roamed the rugged Australian outback. The last remaining mihirung species was the roughly 6.5 feet tall Genyornis newtoni. These stocky birds went extinct about 45,000 years ago–living alongside humans for a bit…
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