gorilla

Provided

A 16-year-old gorilla at the Cincinnati Zoo has died. On Facebook, the zoo reported Anju died from heart failure Wednesday.

Provided / Cincinnati Zoo

Update 05/29/16 at 3 p.m.: The Cincinnati Zoo says it had to make the "difficult decision" to kill 17-year-old gorilla Harambe because tranquilizing was not an option.

Provided / Cincinnati Zoo

She's a little late to take part in Zoo Babies; the Zoo's newest arrival is a western lowland gorilla. Officials say Anju gave birth to a girl Tuesday at 7:10 a.m.

Ann Thompson / WVXU

Seven gorillas, including two babies, got a special treat at the Cincinnati Zoo Thursday and it's not even Halloween yet. Gorill-A-Lanterns were filled with granola, raisins, sunflower seeds, peanuts, grapes, popcorn and apples.

The calm before the storm

The arrival of the gorillas into the exhibit was carefully orchestrated so nobody (except maybe the silverback Jomo) got special treatment.

Curator of Primates Ron Evans, who designed and carved some of the pumpkins, radioed staff to let the gorillas come out.

Cincinnatii Zoo

The Cincinnati Zoo is expecting a baby gorilla any day now. But, the little tyke won't actually belong to Cincinnati.

Neither the unborn gorilla nor its parents, Asha and Jomo, are Cincinnatians, so to speak. Though all three will live here, ownership falls to the parents' zoo of origin.

It's all part of the Association of Zoos and Aquariums Species Survival Plan which helps zoos in North America regulate breeding. Cincinnati Zoo Director Thane Maynard says it's complicated but important.