Giant pandas will be returning to the National Zoo in Washington

The Smithsonian National Zoo is celebrating the return of two pandas, Bao Lee and Ching Bao, to Washington, DC. This comes six months after the zoo sent three pandas back to China. Bao Lee has a special connection to the zoo as his grandparents were among the pandas that left last year. The pandas' arrival is part of a new 10-year research and breeding agreement, highlighting panda diplomacy. The news has generated significant public interest, with many people sharing the story on social media.

What is the purpose of the new 10-year agreement mentioned in the text?

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