How giant panda cubs grow
Mei Xiang, a giant panda at the National Zoo, surprised everyone Sunday night by giving birth to a cub. Mei Xiang began exhibiting behavioral signs of pregnancy over Labor Day weekend, and zoo officials conducted ultrasounds. The tests were inconclusive. Here’s how a panda cub grows. Read related article.
Sources: National Zoo; drawings derived from photos from the San Diego Zoo and the National Zoo. Patterson Clark/The Washington Post.
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