Elves and humans look similar from the outside, but what makes them biologically different? Internally speaking, do they have different organs? Are there "half-elves" (i.e. can humans and elves mate to produce an offspring)?
It is a well-known truth that elves, with slim and lithe bodies, fine features and delicate skin, have always held a fascination for humans. We see in them many of the qualities we aspire to: grace and wisdom, beauty and culture. Yet for all these parallels, it is often overlooked that elves are as different to us humans as dwarves, orcs, ogres or even saurians.
Elven fragility, their adeptness with magics unfathomable to humans, and their incredible longevity – these are all indications that there is as much separating us as there is uniting. Most marked of all though is their worldview and intellect. I have engaged with their scholars, and while a trade of information was beneficial, their philosophies were utterly alien. How can one hope to comprehend the thinking of a being which can expect to live for centuries, and for whom the lives of their brethren represent a millennium of potential?
As for the tawdry physical aspects – physical relationships are not unheard of between elves and humans. Each no doubt makes gains from the pairing, but offspring is not one of them. The species of this world are much too different to breed – like a horse and a cow, we may all walk on the same number of legs, and have roughly equivalent vital organs, but cannot mate. It is a blessing in truth – those liaisons are complex enough without the addition of half-elves!