A 10-year-old gorilla gave San Diego Zoo visitors a scare when he cracked a sheet of protective glass separating visitors ...

Parkgoers at the San Diego Zoo got the scare of their lives when Denny, a 10-year-old Western lowland gorilla, suddenly ...

The 10-year-old gorilla left a large crack in the first of three layers of tempered glass that separates him from visitors at ...

The gorilla named Denny broke one layer of a three-layered tempered glass panel at the San Diego Zoo's forest habitat.

A gorilla at the San Diego Zoo sprinted toward a viewing area Saturday afternoon, cracking one of the three layers of ...

A lowland gorilla was captured on video breaking the protective glass between the gorilla enclosure and visitors at the San ...

In the video captured by eyewitness Emily Holguin on Saturday, Oct. 11, onlookers gasped when they realized what the ...

The startling moment a gorilla slammed into the glass lining of his enclosure at the San Diego Zoo was caught on video.