This week, the internet was up in arms over who would win in battle: 100 men or a single silverback gorilla? One expert says the real fight is much bigger.

Less than a week after its birth, the youngest gorilla at Zoo Atlanta has died, the zoo said Monday.

Two decades of research in Nouabalé-Ndoki Park in the Republic of Congo found the primates foraging alongside each other, wrestling, seeking out their pals — and occasionally making threats.