Lurking in some of the world's deepest caves is the aptly named Hades centipede, just discovered in Croatia.
The centipede, whose name refers to the Greek god of the underworld, is a top predator in caves that are located nearly 4,700 feet beneath the Earth's surface.
"When I first saw the animal and its striking appearance, I immediately realized that this is a new, hitherto unnamed ... species," said lead author Pavel Stoev of the National Museum of Natural History, Sofia, in a statement. Stoev noted the centipede is highly adapted to the cave environment.
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The centipede, Geophilus hadesi, was found in three caves at Velebit Mountain. The Lukina jama-Trojama cave system at the site is currently ranked as being the 15th deepest cave in the world. (Krubera Cave in Abkhazia, Georgia, is the world's deepest cave, reaching a depth of 5,610 feet.)
Within its dark, mysterious habitat, the carnivorous Hades centipede hunts for prey such as insects. Note that centipedes are not insects themselves, because they have more than six legs. They are, however, classified as being arthropods, which is the large phylum that also includes insects, as well as spiders and crustaceans.