Giant panda Mei Xiang (may-SHONG) may have another cub in a few months. Veterinarians gave the furry 16-year-old starlet two rounds of artificial insemination on April 26 and 27 at the National Zoo in Washington D.C., according to the Smithsonian. Female giant pandas are fertile only once a year for about 24 to 36 hours. So, to artificially do the deed, a team of experts carefully monitored Mei Xiang's hormone levels for weeks until they were sure she was in estrus (ovulating) and able to become pregnant, according to a Smithsonian news statement.
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