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this is bait but no
the vast majority of blue animals, like on birds, is structural coloration rather than pigmentation; theres only a single species of butterfly that produces a blue pigment
fur also doesn't really support structural coloration due to how its irregularly formed and the chemical composition, the few mammals with structurally colored fur are brown or golden
can't do green either btw, thats just structural coloration blue with yellow pigmentation atop. Only exception is a single species of bird
