The Big ImageBoard (TBIB) - 3d (artwork) 4 artificial limbs all fours animal legs animal limbs bestiality breasts canid canine canis cybernetic arm cybernetic leg cybernetic limb cybernetics cyborg digital media (artwork) disability domestic dog duo female female on feral feral feral replacement limb human human on feral interspecies machine male male on human mammal nipples prosthetic prosthetic limb prosthetic tail realistic feral tongue tongue out umbrafox what has science done