Your favorite cup of tea could contain the DNA of hundreds of insects, a surprising new study finds.
That could include bees that pollinated the plants, caterpillars that built cocoons on them, and spiders that spun webs around them.
The research team bought teas and herbs at local grocery stores that came from four continents, he told the magazine. They bought multiple versions of the same product from different brands to test a wide range of origins. “Probably 99.999, or something like this, percent of the DNA we extract is plant DNA, and only a tiny fraction, which is left, is the insect DNA,” Krehenwinkel said. “Which, of course, is good for the tea drinkers because they want to drink the tea and not the insects.”
In general, the species matched the known distributions for the plants and arthropods. For instance, mint tea contained DNA from insects found in the peppermint-growing region in the Pacific Northwest, and green tea contained DNA from insects native to East Asia.
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