A gorilla who's lived at Boston's Franklin Park Zoo for more than 25 years died on Thursday, the zoo announced, soon after he was placed under anesthesia following a rapid decline in his health.

A video has once again gained limelight from Franklin Park Zoo in Boston, US, in which a gorilla, Kiki, shares an adorable moment with a woman cradling her newborn son by the glass exhibit.

Nyati, a western lowland gorilla born in the Como Park Zoo, has died following years of battling brain lesions.