Offbeat National Zoo's giant panda experiencing "pseudopregnancy," zoo says

02:00  06 july  2018
02:00  06 july  2018 Source:   cbsnews.com

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Giant panda reproduction is a mysterious process. The animals' behavior and hormones mimic a pregnancy even if they are experiencing a pseudopregnancy , the National Zoo says , and the only way to confirm a pregnancy before birth is by ultrasound.

Giant Panda Update: Panda House Closed for Pregnancy or Pseudopregnancy . Chinese scientists have reported zoo pandas as old as 35. The Smithsonian National Zoo ' s Hsing-Hsing died at age 28 in 1999.

Mei Xiang: 172250390652073926e00o.jpg © Connor Padraic Mallon 172250390652073926e00o.jpg

There won't be a baby panda at the National Zoo in Washington, D.C., any time soon. It turns out Mei Xiang, one of the zoo's giant pandas, is not pregnant, despite showing signs for the last few months, the zoo says.

Scientists at the zoo have determined Mei Xiang was experiencing a "pseudopregnancy," or false pregnancy, during the past few months. She was artificially inseminated March 1, and scientists have been tracking her hormones and behavior since then. A final ultrasound on July 5 confirmed she was not carrying any new cubs.

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