Denny, a 10-year-old western lowland gorilla, recently broke one of the three layers of tempered glass in his habitat at the San Diego Zoo. While no injuries were reported and the zoo says the gorillas will be moved behind the scenes until repairs are made, the incident has raised serious questions that cannot be ignored.

What would drive a gorilla to strike with such force that it damages a reinforced glass panel? Was it fear, frustration, grief, or something else entirely?

Earlier this year, Denny’s older brother Maka died suddenly from a cardiac event. It’s unclear if Denny’s behavior is connected to that loss, but it’s time we asked deeper questions about the emotional and psychological well-being of animals in captivity.

We’re calling on the San Diego Zoo Wildlife Alliance to commission an independent, third-party welfare review of Denny’s care and overall habitat conditions, including behavioral health support, enrichment protocols, and stress monitoring. This review should be transparent, public, and include experts in primate psychology, trauma, and animal ethics.

The zoo claims to be a leader in conservation. If that’s true, then taking steps to ensure the animals under their care are emotionally supported, not just physically contained, is the least they can do.

These animals are not exhibits; they are complex, social beings capable of suffering and loss. Let’s make sure Denny’s glass-shattering moment becomes a turning point, not just a repair bill.

Sign if you believe wild animals in captivity deserve full-spectrum care, including mental and emotional well-being.

Photo: NBC San Diego