The north-south divide surrounding the tyrannosaur is a myth. Evidence that the breed lived in the southern as well as northern hemisphere has been found in the shape of a rod-like bone of a 3m-tall (10ft) creature in Australia. However, it throws up another question - why only those in the north grew to be the size of T-rex. The Anglo-Australian study appears in Science.
http://e-edition.metro.co.uk/2010/03/26/ - p30.
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