👉 In biology, a "xerus" is an organism that lives in arid environments. They are typically found on deserts and other areas with scarce resources like water. Xeruses have adapted to their environment by having thick fur or scales, which helps them regulate body temperature during the day when temperatures can be quite high. They also have a specialized digestive system for extracting moisture from the soil, as well as a strong sense of smell that allows them to find food and avoid predators.