Ключевые слова: animal, animals, background, biology, blackboard, board, chalkboard, crosshatch, design, drawing, ears, endangered, engrave, engraving, etching, fauna, feeding, hand, handdrawn, hatch, hatching, head, illustration, image, isolated, line, lineart, lion, mammal, mammals, mane, nature, painting, pen, pencil, predator, retro, skin, snout, style, tail, tusks, vertebrates, vintage, viviparous, wild, wildlife, zoo, zoology,