Original sentence: Reavers are savage, brutal and primal.Their contact with other humans appears limited to combat, rape, torture, murder, and cannibalism, and no dialogue has ever been shown.They are still able to cooperate and act purposefully enough to use spaceships and set sophisticated technological traps, suggesting that they have retained some level of higher intelligence, though guided solely on their impulse to capture and consume any Humans they come in contact with
Edited sentence: As a result, little is known of Reaver's social structure.Beyond that, no use of spoken language has ever been observed, though they presumably communicate on some level.Reavers are savage, brutal and primal, though they engage in some form of social behavior and cooperation within their own group.Reavers growl and snarl like beasts.Their contact with normal humans appears limited to combat, rape, torture, murder, and cannibalism.These contacts are brief and survivors few.They are still able to cooperate and act purposefully enough to use spaceships and set sophisticated technological traps.This suggests that Reavers have retained some level of higher intelligence, though guided solely on their impulse to capture and consume any humans they come in contact with