The Chimaera, or Ghost Shark, exhibit a morphology unlike any other creature. They are named after the Chimera, a Greek monster that is made up of parts of different creatures.

With seemingly only one gill on either side of their body, upper jaws fused to their skull, no scales, and eyes that are backed with a reflective tissue layer that makes them seem to glow in the dark, the Chimaera have an eerie and ghostlike appearance. They seem to move like ghosts too; as rather than most sharks that generate propulsion using their tails, ghost sharks use their large, wing-like pectoral fins to glide through the water - a characteristic more suited to a bird than a fish.

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