JEAN-CHRISTOPHE VERHAEGEN/AFP/GettyImages
Visitors at the zoo thought they were just going to watch the polar bears swim in their underwater tank, but it looks like this bear was trying to escape! He threw a huge rock at the glass separating the enclosure from the observation area and shattered the glass!
Luckily, the glass separating the the two areas was strong enough not to shatter.
It was all caught on tape too! Scroll down for the video…











































