(WASHINGTON) — There is a panda watch under way at the National Zoo in Washington, D.C.
Scientists say the female giant panda may be pregnant. She has been building a nest, is sensitive to noise and her hormone levels are high.
The zoo has closed part of the panda exhibit so she can have some privacy.
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Emanuella Grinberg, CNN
Steve Visser, CNN
Jill Martin and Steve Almasy, CNN