[Pollinator] Sulfur attracts male wasps to orchids?

[Peter Bernhardt]

Here is an unusual story.  In Australia there are many orchid species that
are pollinated by male wasps.  The orchids mimic the bodies of females but
little was known about their fragrances.  It appears that some of the scent
molecules in one orchid species contain sulfur atoms.  There are two videos
that go with this article.

Peter
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