Forest Service Interpreter Larry Rickards watches a black bear walk past the Mendenhall Glacier Visitor Center in Juneau, Alaska, US, on Sept. 6, 2007.

• 去年九月六日，美国阿拉斯加首府朱诺的林业局解说员赖瑞．瑞克兹望著一头黑熊走过曼德荷冰河游客中心。