An angry gorilla caused panic among zoo visitors when it rampaged through its enclosure before smashing the glass barriers. The incident occurred at the San Francisco zoo on October 11, as the 400-pound gorilla named Denny attempted to break free from his enclosure, prompting onlookers to scatter in fear.
Witnesses described feeling as though an earthquake had struck when Denny aggressively collided with the glass walls. Fortunately, the reinforced glass, comprising three layers of tempered safety material, remained mostly intact except for one layer. Despite the intense encounter, Denny emerged unharmed from the incident.
Following the disturbance, the gorillas in the Forest habitat enclosure were relocated while repairs were carried out on the damaged glass. This event unfolded shortly after the unexpected passing of Denny’s older brother Maka, a 30-year-old western lowland gorilla, in August due to a cardiac episode.
Zoo officials reassured the public, stating that such behavior was not uncommon for gorillas of Denny’s age. They explained that young male gorillas, especially during adolescence, often exhibit energetic and playful behaviors like charging, dragging objects, or running sideways.
Experts in primate behavior, including Dr. Erin Riley and Dr. Annie Petersen, emphasized that Denny’s actions were typical for his species. They explained that gorillas, particularly males, may engage in charging displays as a way of asserting themselves or demonstrating excitement rather than aggression.
In response to the incident, the zoo issued a reminder for visitors to exercise caution around the animals and respect their space. Given the immense strength and sensitivity of gorillas, visitors were advised to observe the animals without provoking them.
Western lowland gorillas, classified as the largest primates globally, can reach heights of up to six feet and weigh as much as 500 pounds. These critically endangered species face threats in the wild due to habitat destruction and illegal poaching activities across central Africa.