Laura Smith-Spark wrote about an entrepreneurial panda:

• Ai Hin, a giant panda, was meant to star in the broadcast of a Panda birth.
• The panda was selected after it had shown signs of pregnancy such as changes in hormone levels and eating preferences.
• However scientists later confirmed that the panda was not pregnant.
• It is theorized that pandas sometimes fake pregnancies because those that actually get pregnant get preferential treatment such as air conditioning and more food.

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Source: CNN