Information collected during the exam will serve as a baseline for future exams. And the DNA sample, either from a swab of the cub's mouth or feces, will be used to determine the cub's father. Mei Xiang was artificially inseminated both with sperm from the zoo's male panda, Tian Tian (tee-YEN tee-YEN), and sperm from a panda at the San Diego Zoo, Gao Gao.
Visitors to the zoo Saturday said they were excited about another panda cub. Melissa Schmechel, of Alexandria, Va., said she spent about 30 minutes Friday watching the zoo's online panda camera after it was announced on Facebook and Twitter that Mei Xiang had gone into labor. She said she and her family had made plans to visit the zoo last year after the birth of Mei Xiang's second cub and were sad when it died.
"Hopefully this will have a better outcome," she said as her 11-year-old daughter, Laura, hugged a newly purchased stuffed panda.
Associated Press writer Tim Jacobs in Chicago contributed to this report.
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