To us as _humans_ it would be striking that Aurins have ears and tails. But that wouldn't make ears and tails sex symbols to Aurin themselves as they will perceive other aurins, like we perceive other humans, to be composed of many body parts, of which the ears and tails may not be the most important ones. If you look at someone to evaluate that person's fitness as a partner, there are simply parts that receive more weight than other parts. For example, human females choosing males put much more weight on length and how attractive the face is than on, for example, if someone's underarms are of the 'right length'. In general, characteristics that make one attractive to the opposite gender are mainly those things that are different between sexes (the male peacock's tail, for example). Especially given the variation in Aurin ears, ears may not biologically be very suitable as a sex symbol - body shape and size (which would more consistently and easily distinguish male from female Aurin) however would. So basically, there can be quite a bit of a difference between what we perceive as the 'racial' (well, 'special') characteristics of a species, and those traits that members of that species themselves find 'sexy'. In fact, the more 'typical' a characteristic of a race is (because males and females have it to comparable degrees) the less important it likely is in mate choice. One example of this misunderstanding, where biologists likely were not involved, was the satirical Disney series 'Dinosaurs' (very worth watching, by the way): females became 'sexy' when they developed tails, and 'underdeveloped' females occasionally even bought 'fake tails'. Biologically, that would however not make any sense, as regular male dinosaurs had tails as well, tails therefore did not distinguish between genders and would therefore not be considered sex symbols in such a species. You would be right though that indicators of health (big, well-groomed ears) may add to attractiveness, but they may not be the most important factors influencing physical attraction in Aurin. One could make similar arguments for horns and tails in Draken. Actually, the fact that some posters seem to find Aurin/Draken females attractive is a sign that for humans at least, the presence/absence of a tail and/or the smallness of ears is not the most important factor in physical attraction.