Chicago zoo visitors have been told to put their phones away after a distracted gorilla was "jumped" by another giant primate as he stared at a visitor's screen.
The 16-year-old, named Amare, was "rushed" by another gorilla while he was "glued to a cellphone", according to reports.
Amare, who lives at Lincoln Park Zoo, "didn't seem to notice" what was happening, the Chicago Sun Times reports.
