Jaculus Jaculus is a species of small rodent found in North Africa and the Middle East, commonly known as the lesser Egyptian jerboa. Synonyms for this species include Dipus jaculus, Jaculus aegyptius, and Jaculus oriunthus. The jerboa is known for its long hind legs and unique hopping movement, making it an adept runner across arid terrains. Its nocturnal behavior and ability to survive without water for prolonged periods make it well-suited to the harsh conditions of its native habitat. Despite its small size, the lesser Egyptian jerboa is a remarkable and resilient creature, known for its rapid movements and unique adaptations.