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A comment on Giant Rats Sniff Out Landmines in Tanzania.

Re:Giant Rats Sniff Out Landmines in Tanzania by devenson on Friday March 06, 2015 @09:03PM (#9160663)
> Apopo says its rats can each search 200 square metres of land in just 20 minutes; people using metal detectors would take five days to search the same area.

Why would it take 5 days for a human to search approximately 2000 sq ft of space? Seems incorrect.

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Re:Giant Rats Sniff Out Landmines in Tanzania by GFK_of_xmaspast on Friday March 06, 2015 @10:26PM (#9160873)
2000 square feet is 50' by 40', now go over that inch by inch with a metal detector, and you'd better be sure you didn't miss a single spot, and oh there's vegetation and terrain.
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