Overview
- Video shows Denny, a 10-year-old western lowland gorilla, running into a viewing wall on Saturday and cracking one layer of a three-layer tempered glass panel.
 - The Gorilla Forest habitat is closed while the damaged panel is replaced, and the animals have been moved off exhibit.
 - Zoo officials say Denny was not hurt and that both gorillas are being cared for during repairs.
 - A spokesperson said such energetic charges are common for adolescent males, noting behaviors like charging, dragging items, or running sideways.
 - The zoo previously reported the August death of Denny’s brother Maka, and conservation groups classify western lowland gorillas as critically endangered with populations down more than 60% in recent decades.