The devil shark (Hybodus sciifii, name meaning "SciiFii's humped tooth") is a species of Chondrichthyan shark that first appeared towards the end of the Permian period as an early extinct Hybodus species, and disappearing during the Late Cretaceous also as an extinct Hybodus species, and was once extinct, but has since been brought back from extinction by SciiFii and introduced to throughout the world's warm and cool seas by some of SciiFii's scientists to help boost biodiversity. The devil sharks are especially successful and can be found in the shallow seas across the world's oceans. The devil shark can grow to be about 2 metres (6.6 ft) in length, and are opportunist predators of a wide range of small-to-medium-sized marine animals. It is not very big, but has the classic streamlined shark shape, complete with two dorsal fins that help it steer with precision. Its mouth is not large, and rather than ruthlessly hunt large prey, the devil shark is capable of eating a wide range of foods. The devil shark is named for its two horn-like structures on its head, which resembles short horns of its mythical namesake. It also has sharp spines sticking out of its dorsal fins to defend itself against any possible predators such as killer whales. The conservation status of the devil shark is Least Concern due to successful conservation efforts, the devil shark's wide range, and its tolerance to most of human activities. The devil sharks are also completely tame and docile towards humans and their pets, probably a result of genetic engineering by SciiFii, and humans seem to tolerate the devil sharks' presence in public beaches because of this.
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