Grizzily Bear Smashes Glass Wall At Minnesota Zoo!!

Today a Grizzly bear smashed a glass wall in his enclosure at the Minnesota Zoo. The public was right watching when it happened, but at no time were they ever in danger because he had 4 more layers of glass to go through to get to them.  hahahaha But I am sure it was still scary! The glass did exactly what it was supposed to do if broken, it cracked all over but did not break. That particular glass is 2.5 inches thick. And the bear used a basketball sized piece of rock which he bounced off of another rock. In the Yahoo article, it says that they removed all of rocks from the enclosure but in the video, you can see tons of rocks embedded in the ground. Maybe they meant that removed all of the loose rocks? Or maybe they are stupid. hahahaha The zoo has taken the precaution of closing the exhibit until the glass can be replaced which is scheduled to take several weeks.