Well, that's a metaphorical sense of natural justice, at best. We read between the lines, or see patterns that aren't wholly objective. The coyote who hunts a rabbit knows nothing about rabbit lust, justice, or the species of rabbits as a whole. And the coyote isn't a judge who's in a position to render a verdict on the species.
But sure, there's a balance in nature--until there's not, as when a natural disaster wipes out most species all at once, and the process starts again. This is wild "justice," which isn't what we mean by the word.