Yeah... that's old.
everythin about lotr is old xD
You know, this is one deep sentence, right here. Consider the whole story. The book dates back to the middle of last century, Tolkien himself was pretty old already when he wrote it, almost every single race is unnaturaly long-lived, the creatures are also old (or enduring, and dating back to early ages), the world itself has gone through some epic stuff already...
I mean, I'd be surprised if ANYTHING at all that lived on Middle Earth lived less than a century.