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Grunts are a species of aliens that belong to The Covenant. The are weak, cowards, and have annoying high voices. Though they are weak, they are danger in large groups.
Grunts live on the planet . They breathe methane instead of oxygen beacuse there planet's atmosphere is made entirely of methane gas. They will die if they breathe oxygen too long, so they have to wear gas mask thats attach to a methane container they wear on there back, making them look ridicules. Though they look more ridicules wihout them. Guess their just ridicules creatures. They are short and have annoying squeeky voices, as if they eat helium for breakfast.