Felines, or cats, are predators in the mammal family. There are 36 members of this family. Felines are mainly solitary animals, except for lions. The largest member of the feline family is the Siberian tiger, and the smallest is the black-footed cat. Most felines are considered to be small cats, with an exception of four. They are the lion, tiger, leopard, and jaguar. They belong to the genus panthera. They are considered to be big cats because they can roar. Small cats cannot roar. They are found on all of the continents, except for Antarctica. Felines have very acute senses of hearing and vision. Lacking stamina, felines ambush their prey or run them down over a short distance.