The Great Ape House is awaiting the arrival of its newest resident! Keepers have been watching western lowland gorilla Calaya’s sleep patterns, appetite and socialization, as any changes in her behavior may signal that birth is near. She is due anytime between now and early May.

Animal keeper Melba Brown has noticed that Calaya has been sleeping in longer in the mornings and taking more naps during the day; her appetite has also decreased slightly.

Socially, Calaya and Mandara have been rather aloof with one another in recent days. But, this has not been the case with male silverback, Baraka. Brown says that he and Calaya have been very playful with each other. He turns 26 years old next Wednesday, April 11!

Follow the Zoo’s updates throughout Calaya’s pregnancy on Facebook, Twitter and Instagram with the hashtag #gorillastory.