NEW YORK -- By studying blindfolded college students who crawledthrough grass to sniff out a chocolate-scented trail, scientists saythey've found evidence of a human smelling ability that expertsthought was impossible.
The study indicates the human brain compares information it getsfrom each nostril to get clues about where a smell is coming from.And it suggests dogs, mice and other mammals do the same thing,contrary to what most scientists have thought.
People compare signals from each ear to locate the source of anoise.
But the prevailing notion has been that mammals can't follow thesame strategy for smells, because their nostrils are too closetogether …
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