Hong Kong - Large, carnivorous dinosaurs roamed southern Australia 115 million years ago, when the continent was joined to the Antarctica, and were padded with body fat to survive temperatures as low as minus 30 degrees Celsius.
Standing almost four metres tall, these hardy creatures inhabited the area close to the South Pole for at least 10 million years during the Cretaceous period.
Palaeontologists from Australia and the United States came by their findings after uncovering three separate fossil footprints measuring about 36cm long, each with at least two or three partial toes.
The footprints were found close to the shoreline in Victoria, Australia, in February 2006 and February 2007. From the size of their feet, the experts figured they were up to 1.5m high at the hip.
Australia was once part of the southern supercontinent of Gondwana, which also included South America, Africa, India and Antarctica. Gondwana began to break up about 120 million years ago and Australia separated from Antarctica about 50 million years ago and began moving northwards.
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