为了跟随研究美洲豹，Roelke必须涉水通过沼泽和躲避响尾蛇。
Roelke waded through swamps and dodged rattlesnakes to follow panthers.
最后他们不到十分钟便通过沼泽，是所有参赛者中最快的。
They made it across the swamp in less than 10 minutes, which was the fastest time of all the contestants.
布拉德利教授指出，新石器时代的人以会制造长木板而著称，这些木板可以帮助他们通过沼泽， “虽然该试验还不能证明当时确实采用了球轴承的方式，但是至少在概念上是行得通的”，他说，“这是个全新的看法，因为之前的那些看法并不能有效解释巨石是如何运输的，同时还遗留下许多考古方面的未知问题。”
Neolithic people were known to cut long timber planks, which they used as walkways across bogs, Prof Bradley pointed out.
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