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German veterinarian Robert Hermes watches the monitor of an ultrasonic scanner as a team of experts from Austria, Germany and Hungary examines the pregnancy of the Budapest Zoo's southern white rhinoceros (Ceratotherium simum) 'Lulu' in Budapest, Hungary, Monday, Oct. 8, 2007. Because of the rhinos at the zoo being siblings, veterinarians triggered Lulu's second pregnancy by an artificial insemination. The successful birth of her first calf was in January 2007, which was the first birth of a rhinoceros by artificial insemination in the world. Zoo staff keeps the rhino mother under a continuous monitoring in her 16-18 months pregnancy. (AP Photo/Bela Szandelszky, Pool)