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The siren heads, also formatted as "Sirenhead", (Sirenmonstrus sirenmonstrus) are a fictional giant humanoid species created by Trevor Henderson. They are tall, brown, slender humanoid beings with a siren pole as their head and mouths within their sirens. Although they look malnourished, they have a very low metabolism and can survive for a very long time. Siren heads are very aggressive, monstrous, and skilled predators, which makes them very dangerous. They seems to have some degree of intelli

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