年长的狗在日常锻炼中吃草

from above, an elderly dog lowers its head to the grass during a morning walk, sniffing and nibbling as part of a rich sensory routine. Grass carries layered scent cues from soil microbes, plants, and recent visitors, allowing dogs to read information left by other dogs such as sex, health status, and time since passing. Light grazing engages taste, texture, and smell together, helping the dog orient itself within familiar territory and mentally map its environment through scent recognition rather than visual landmarks.