The Field Museum’s Sue is no longer the most expensive fossil, T. rex or otherwise, ever sold at auction. That honor, after eye-popping bidding Tuesday night at Christie’s in New York, belongs to Stan, a T. rex specimen with roots similar to Sue’s.But Sue fans needn’t worry. “Sue is still bigger and more complete,” says … Continue reading Sue is no longer the priciest T. rex ever, but is it still the best specimen? Let’s go to the tape