MIAMI (CBSMiami/AP) – Miami’s Jungle Island threw a very special birthday party Sunday for two of their most beloved residents.

Peanut and Pumpkin, orangutan twin sisters, turned nine on Sunday.

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For Peanut it was a special landmark considering her battle with cancer earlier this year.

Sunday’s admission price will be donated to the Sylvester Comprehensive Cancer Center at the University of Miami Miller School of Medicine, which helped provide “world-class care to Peanut during her chemotherapy treatment.”

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Peanut and Pumpkin are only the third set of orangutan twins to be born in captivity. They are a hit with park visitors, using sign language and an iPad to communicate with trainers.

Peanut’s chemotherapy ended last month after her medical team announced it was time to wrap up her treatments for the aggressive lymphoma.

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