This Is Why They Have Shatterproof Glass in the Gorilla Enclosure [VIDEO]

Ever wonder why the glass is shatterproof at the gorilla enclosure? You won't anymore after seeing this silverback gorilla charge and jump onto the glass at the enclosure at Henry Doorly Zoo in Omaha, Nebraska. The zookeeper might have had to give the gorilla some extra strength Tylenol with his evening meal as he must have had a whale of a headache!