A female western lowland gorilla named Ndjia takes a morning ice treat during her debut at the Los Angeles Zoo on Thursday, July 12, 2018. She was brought from the San Diego Zoo on May 9 to be paired with the Los Angeles Zoo's male silverback gorilla, Kelly, under a program that breeds western lowland gorillas, a species considered critically endangered in the wild. (Photo/Agencies)
A female western lowland gorilla named Ndjia takes a morning ice treat during her debut at the Los Angeles Zoo on Thursday, July 12, 2018. She was brought from the San Diego Zoo on May 9 to be paired with the Los Angeles Zoo's male silverback gorilla, Kelly, under a program that breeds western lowland gorillas, a species considered critically endangered in the wild. (Photo/Agencies)
Kelly, a silverback lowland gorilla, takes his breakfast while keeping an eye out on Ndjia, a female gorilla making her debut at the Los Angeles Zoo on Thursday, July 12, 2018. Ndjia, was brought from the San Diego Zoo on May 9, 2018, to be paired with the Los Angeles Zoo's male Kelly, under a program that breeds western lowland gorillas, a species considered critically endangered in the wild. (Photo/Agencies)
Kelly, a silverback lowland gorilla, takes his breakfast while keeping an eye out on Ndjia, a female gorilla making her debut at the Los Angeles Zoo on Thursday, July 12, 2018. Ndjia, was brought from the San Diego Zoo on May 9, 2018, to be paired with the Los Angeles Zoo's male Kelly, under a program that breeds western lowland gorillas, a species considered critically endangered in the wild. (Photo/Agencies)
Kelly, a silverback lowland gorilla, sits in his enclosure taking breakfast while Ndjia, a 24-year-old female gorilla, not seen in photo, makes her debut at the Los Angeles Zoo on Thursday, July 12, 2018. Ndjia, was brought from the San Diego Zoo on May 9, 2018, to be paired with the Los Angeles Zoo's male Kelly, under a program that breeds western lowland gorillas, a species considered critically endangered in the wild. (Photo/Agencies)
Kelly, top, a silverback gorilla, walks past Ndjia as she takes an ice treat during her debut at the Los Angeles Zoo on Thursday, July 12, 2018. Ndjia, was brought from the San Diego Zoo on May 9, 2018, to be paired with the Los Angeles Zoo's male Kelly, under a program that breeds western lowland gorillas, a species considered critically endangered in the wild. (Photo/Agencies)