Tardigrade species that absorbs lethal UV radiation and then emits blue light discovered

They might be tiny creatures with a comical appearance, but tardigrades are one of life’s great survivors. Now scientists say they have found a new species boasting an unexpected piece of armour: a protective fluorescent shield. Also known as water bears or moss piglets, tardigrades are microscopic, water-dwelling creatures, around 0.5mm to 1mm in length, that resemble a crumpled hoover bag with eight legs. But while their appearance invites amusing comparisons, it is their hardiness that has inspired awe: the creatures can survive the vacuum of space, extreme temperatures and pressures, and intense ionising and UV radiation.


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