Depending the type of animal that is dead will alter the meaning of the dream. Dead animals in your dream reflects the animalistic side of the dreamer that needs reviving. Usually these are unconscious behaviors, instincts, urges that mirror the type of animal that is displayed. If you see one on the side of the road it connects to observing this along your path in life. Common themes revolve around noticing a dead carcass or animals being skinned alive.