While it's lots of fun visiting the zoo and seeing so many different animals up close, it's easy to forget just how dangerous some of them can be.
This Silverback Gorilla in the US is a prime example. A visitor of the Henry Doorly Zoo in Omaha was filming himself at the Gorilla enclosure when the Gorilla inside decided to assert his authority.
While it ended with the Gorilla looking slightly foolish it is pretty scary when it takes flight towards the glass. The person who filmed the video said that the same Gorilla cracked the glass in the enclosure during their last visit over a year ago.
Via The Telegraph