TheOnion has an amusing story about SUE the T-rex. It seems that they have been trying to breed SUE for quite a while and now she's pregnant!
CHICAGO—Expressing their elation at the rare specimen’s successful mating, Field Museum officials announced the long-awaited pregnancy of Sue, the museum’s beloved T-rex, in a press conference Friday. “When we first acquired Sue, we were somewhat worried because she just hung around her exhibit all day and seemed to show no interest in mating, but now we’re thrilled to announce that the Field Museum has a baby Tyrannosaurus rex on the way,” said exhibitions developer Monisa Ahmed, recounting how the museum struggled to breed the dinosaur for several years before introducing Sue to Scott, the world’s largest T-rex, who was flown in from Saskatchewan for the project.