I don't know who the kid is, but the very entertained gorilla is Jelani, who lives at the 4-acre gorilla sanctuary at the Louisville Zoo.

Gorillas are pretty cool, and pretty smart. They can use sign language, they can recognize themselves in mirrors, they can scare the crap out of rude zoo-goers, and they can even be sad when Robin Williams dies. Add one more human-like skill to their repertoire, the ability to sit and scroll endlessly through photos on a smartphone. That's what happened on what looks like a school trip to the zoo, when this kid found the perfect way to bond with Jelani, a 17-year-old silverback. Apparently, the zoo is aware of his behavior, since they mention it in his bio, "He is a laid-back individual and likes to look at cellphone photos and videos.

Sources: Paul Ross