The Evolution of Complex Life

Sex is absolutely fundamental on this planet. If you imagine that we found complex life on a different planet, let's say, would you imagine that sex would be a part of that life? Nee, never imagn i would think, probably yes. It's the evolutionary race thing - once somebody starts playing it, then it's going to spread. I think also it's inevitable because once your brain gets to a certain size, it makes life quite interesting. So if sheep have massively complex and pan sexual lives, and we've no idea how that relates to their brains, by the way, what wet you kni? What ar the implications for all anim it's just makingthat life