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A category of beetle known as fireflies has more than 2,000 different species
![fireflies](https://assets.shortpedia.com/uploads/2022/10/13/1665649515.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
A category of beetle known as fireflies has more than 2,000 different species. Despite their name, only a few species give birth to glowing adults. For instance, fireflies in the western United States are unable to emit light.