The term "Big Five" originally referred to the five most challenging animals to hunt on foot in Africa. Today, it's more commonly used in the context of wildlife safaris to describe the most iconic and sought-after large mammal species. The Big Five consists of:

1. Lion (Panthera leo): Known as the "king of the jungle," lions are apex predators found in savannas and grasslands across sub-Saharan Africa. They are known for their majestic manes and social structures centered around prides.

2. African Elephant (Loxodonta africana): The largest land mammal on Earth, African elephants roam the savannas, forests, and deserts of Africa. They are characterized by their massive size, distinctive trunks, and large, flapping ears.

3. Cape Buffalo (Syncerus caffer): Also known as African buffalo, these formidable herbivores are found in large herds across grasslands and woodlands. They are known for their robust build, curved horns, and reputation for being unpredictable and dangerous when threatened.

4. Leopard (Panthera pardus): Known for their elusive nature and spotted coats, leopards are skilled hunters found in a variety of habitats, including forests, grasslands, and mountains. They are solitary and adaptable predators known for their strength and agility.

5. Rhinoceros (Ceratotherium simum and Diceros bicornis): The Big Five includes two species of rhinoceros: the white rhinoceros and the black rhinoceros. These magnificent creatures are known for their armored appearance, massive size, and distinctive horns. Rhinos are critically endangered due to habitat loss and poaching for their horns.