‘Cub Watch' Begins Again for National Zoo's Female Giant Panda

The National Zoo's giant panda Mei-Xiang is starting to build nests — which could be a sign that she's having a cub ... or not.

Before you get too excited, the zoo says that aside from the nest-building, they haven't seen any other pregnancy or pseudopregnancy behaviors so far, but they say it's still very early.

"Although we've seen some nest-building behaviors, before the end of the month we expect that to increase," the zoo said in an update posted online Friday. "She'll spend more time sleeping and become sensitive to noise."

Mei Xiang was was artificially inseminated back in March. Vets have been conducting weekly ultrasounds, but the zoo says it's still too early to tell if she is pregnant.

She has given birth to three surviving cubs with Tian Tian, the zoo's male giant panda. Both Tai Shan and Bao Bao now live in China, but the youngest, Bei Bei, is still at the National Zoo.

CORRECTION (July 19, 2019, 10:30 a.m.): This story previously misidentified Tai Shan.

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