Varroa Nile Red (IMAGE)
Caption
This microscopic image shows a varroa mite that has consumed honey bee fat body tissue tagged with Nile red, a fat-soluble fluorescent dye. Observing this red fluorescence in the mites' digestive systems helped researchers determine that varroa mites feed on honey bee fat body tissue--not blood, as previously assumed.
Credit
UMD/USDA/PNAS
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