Equus mulus, commonly known as the mule, is a hybrid offspring of a male donkey (jack) and a female horse (mare). Known for their strength, endurance, and sure-footedness, mules are typically sterile. They have a body size and shape similar to horses but with donkey-like ears and tails. Mules are highly intelligent and exhibit a strong survival instinct, often used in agriculture and transport due to their reliability and resilience.

Equus mulus, commonly known as the mule, is not a naturally occurring species but rather a hybrid offspring of a male donkey (Equus asinus) and a female horse (Equus caballus). Therefore, mules do not have a native region of their own. Instead, they are found in regions where humans have bred donkeys and horses, typically in agricultural or rural areas worldwide.

Mules can adapt to a variety of environmental conditions due to their hybrid nature. They are commonly found in temperate to tropical climates and are used in regions with varied environmental conditions, including mountains, deserts, and agricultural lands.

Mules are primarily used as working animals in agricultural and rural settings. They are valued for their strength, endurance, and ability to work under harsh conditions. They serve an ecological niche as domesticated animals used for transportation, carrying loads, and performing labor-intensive tasks in environments where mechanical alternatives may not be feasible or available.