A lion and a tiger — kind of predatory mammals, two of the four members of the genus Panther related to the subfamily of big cats in the part of the cat family . Lion and tiger are the largest of the living cats, the mass of some males can reach 250 kg. it is Difficult to say for sure whether the largest subspecies of lion are more massive than the largest subspecies of tigers or not. In nature do not live together. This can only be seen in the zoo.