BROOKFIELD, Ill. (WLS) -- The Brookfield Zoo snapped some adorable photos of two of the young western lowland gorillas.
In the photos, 5-year-old Nora holds her 6-month-old little sister, Ali. The two sisters are starting to play together frequently, the zoo said, though Ali still keeps close to their mother, Koola.
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The other members of the gorilla family are Koola's other daughter, Kamba; Zachary, Kamba's son; Binti Jua, Koola's mother; and JoJo, a 38-year-old male silverback gorilla.