Besides human beings, tigers and lions sometimes kill leopards. But rather than being a case of predation, it is usually eliminating a competitor.
Humans.
people
Man
birds and other fish
they don't they get eaten
lions lions
they hide with nickolas' dingo
well, it would have alligators and crocodiles
man with a gun. some africans by hand. thats it.
any organism that exists by preying upon worms
Spotted leopards do, but other leopards don't - such as black leopards.
Panthers and other leopards
No lots of predaters