I'd tend to agree with Marinehawk but it boils down to what you mean by "taught."
You can't learn it in a classroom. But I guarantee if you took identical twins and separated them at birth and one grew up on a farm working from a young age and the other was raised by a couple of gay interior decorators in NYC, I could pick the one most likely to hump an elk out on his back.
You might call that nurturing what's already there, but it's also learned behavior.
