that depends. you can find examples that tell you either answer. but generally speaking, there is no difference. tigers live in solitude 80% of their life, and are the largest real species of cat. (real because the overly popular famed 'liger' has only ever been seen in captivity, and less than a dozen lived to adulthood) hyena have been filmed taking african wild dog kills, by themself. solo. there are not many other examples like this because the tiger and lion are so closely related, and so iconic, its very easy to compare the two as though they were in the same race. on the other hand, a overwhelming majority of animals are a bit harder to compare, because they are not on a level playing field. wild gaur can be found living in solitude, and are the largest living species of bouvine. other than that im drawing a blank. any species that is a member of a group, who lives so lo, and happens to be bigger and/or more powerful than similar species that live in groups would be on this list. birds of prey are another example. solo eagles get harassed by mating pairs of hawks and falcons, but could easily kill them. that is why eagles get attacked by smaller birds from above and behind, where the only thing the eagle can do is run.