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Credit: Dirk Hölscher, Max Planck Institute for Chemical Ecology
I know what you're thinking … this has nothing to do with anything naughty. Any guesses?

It's a little more grounded than ... They are banana roots.
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An international team of scientists found that some banana types accumulate certain plant toxins near root tissues attacked by the parasitic nematode called Radopholus similis. That toxin is critical in giving the banana resistance to the pest, which stores droplets of the toxin and finally dies.

Here, the root of the susceptible banana variety Grande Naine (above) and the resistant banana variety Yangambi km5 (below).    Less «
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