I want to thank Mike T. for sending this to me. The article is titled “Grizzly bear shatters barrier at Minnesota Zoo”
APPLE VALLEY, Minn. – A grizzly bear exhibit at the Minnesota Zoo is temporarily closed after one of the bears picked up a basketball-sized rock and shattered a barrier.
Startled visitors stood on the other side as the bear repeatedly slammed the rock into a pane of glass Monday morning.
Zoo animal collections manager Tony Fisher tells the Minneapolis Star Tribune the five-layer pane stayed in place “like a windshield.” No one was hurt.
The grizzlies were called back inside. The area will be closed until a temporary fix can be made ahead of a permanent pane being installed.
Fisher isn’t sure which of the three bears is responsible for busting one of pane’s five layers. But he suspects it was Kenai, a nearly full-grown male who is “usually the clown out there.”
The exhibit — home to three grizzlies that were orphaned in Alaska — is temporarily closed until the zoo can place a new bear-proof barrier in front of the broken panel.
“We thought we had all the rocks out of their exhibit but one of them dug it up somewhere,” Fisher said.
The zoo plans to custom-order a replacement glass piece, which could take up to several weeks, according to Fisher. The 2 ½-inch-thick glass is similar to a car windshield and is designed to absorb impact.
Source:http://www.foxnews.com/us/2015/07/07/grizzly-bear-shatters-barrier-at-minnesota-zoo/