Unlike many animals, humans can’t see biofluorescence unaided – but with a UV torch, a night stroll looks very different
It is a murky, dank night in the middle of the countryside, a tawny owl is calling, and I am in raptures, stroking a slug. From the nearby blackness, Jeremy Buxton, a farmer, exclaims: “Oooh, an earthworm!. Oh, wow.”
The brown slug is emitting brilliant fluorescent yellow slime as I touch it; the earthworm is revealing twin tracks of turquoise on its belly. What might appear some kind of experiment with psychedelic mushrooms is actually a new way of seeing the world at night: shining ultraviolet torches to reveal the natural biofluorescence of animals, plants and fungi.
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