Ключевые слова: biology, black, body, bone, brain, cranium, dark, dead, death, decay, face, front, gloom, halloween, head, health, horror, human, icon, illustration, isolated, jaw, life, medical, medicine, metal, model, mourn, mouth, natural, nature, noggin, nose, old, physiology, scary, science, sign, skeleton, skull, spooky, symbol, teeth, view, white,