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Animal keeper Juan Rodriguez feeds giant panda Mei Xiang apples and pears as an ultrasound is performed on her at the National Zoo in Washington, Thursday, March 24, 2011. "She's looking great," says supervisory veterinarian Jessica Siegal-Willott, "it's too early to say if she's pregnant or pseudo-pregnant but she's progressing normally for both." Mei Xiang was artificially inseminated in January, and is now having weekly ultrasounds to monitor her condition.
( (AP Photo/Jacquelyn Martin))