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Trailblazer by Christian Wappl, Austria. Highly commended, Behaviour: Invertebrates. “A large firefly larva, about 8 centimetres (more than 3 inches) long, emitting continuous glow from four light organs at its rear. Fireflies spend most of their lives as larvae, feeding mainly on slugs and snails. This one can even tackle invasive African land snails many times its own size. Its glow – the result of a chemical reaction in its light organs – is most likely a warning to predators that it is unpalatable (whereas, the flashing lights of adult fireflies are for courtship)”. (Photo by Christian Wappl/2018 Wildlife Photographer of the Year)
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