Panthera leo is the scientific name for a lion, while "leeu" is the Afrikaans name and "simba" is the Swahili name for the big cat. Baby lions are called cubs. These felines are the largest carnivore in Africa and the second largest species in the cat family, according to the Predator Conservation Trust. Adult males have the characteristic mane around their necks and shoulders, with the size, color and extension varying by geographic location.