i heard the same thing! i think it a bit of an urban myth though. Sure there are apes, namely the bonobo is one horney motherfucker, quite litterally! Also there are things like homosexuallity in nature, i'm sure we've all see dogs hump one another sometime. Or Cows (&bulls) but also birds & stuff. A biologist once told me this was highly under documented, or under researched...shows what we "know" about anything really... Instinct or art? I'd like to think so. Sure you can have sex to procreate, but also to recreate or use it as a channel or [size=-1]Vessel to reach a higher (other) level of awareness, like tantra. and the kama sutra is quite artfull Peace & Love to you all [/size]
Sex is an art form, and an athletic endeavor. My Oscar always gives an Academy Award winning performance.
Why put labels to sex as art of animal instinct. Everything you do as a human is instinctive. And if you'd like to put that more into an art form, you still can. So I'd go with instinct than anything else. www.girlsaskguys.com
Some of the know-how when it comes to sex may be seen as a talent, and therefore possibly an art, but at it's base, sex is a natural desire/instinct. Since we are basically just very intelligent animals (ok, with spirits maybe), it is an animal instict. It is many other things though. For one, it is the deepest form of communication between two people. Also, it is one of the most intimate.
Sex at its best it the most intimate form of human contact. When a man and a woman are able to orgasm together, it is almost like they become one being for an instant, as they work together to create another human being. This happened to me and my late wife years ago, and identical twin daughters were the result nine months later.