"Silverback" refers to the large, dominant male gorilla in a group. He is called "silverback" because as he grows older, a patch of hair on his back turns silver, indicating his maturity and leadership. Full definition
Johnson stars as primatologist Davis Okoye, a man who keeps people at a distance but shares an unshakable bond with George, the extraordinarily intelligent, incredibly rare albino silverback gorilla who has been in his care since he rescued the young orphan from poachers. (comicbook.com)
The video game inspired monster movie follows Davis Okoye (Dwayne Johnson), a dedicated primatologist that looks after and takes care of a rare albino silverback gorilla named George. (weliveentertainment.com)
It happened in Bwindi Impenetrable National Park near Uganda — an incredible, chance encounter with a troop of silverback gorillas. (treehugger.com)