Why intelligence was developed in the first place

Modern philosophy but also ancient philosophy always quickly moves far away from the reason intelligence was developed in humans in the first place, to help in the creation of more effective survival responses to the changing environment. Do philosophers now leave it to technology to deal with finding more effective ways to survive? Is survival thought to be so easy now that finding effective survival responses are no longer important?

What we see of life on this planet shows otherwise. Survival may be easier but philosophy and intelligence are still needed to find effective survival responses to the modern world, because our survival is not a sure thing, and we are going in multiple often conflicting directions with little serious thought of the future.

This is a central reason why I think philosophy has to affirm sociobiology, I have called it philosophical sociobiology, but whatever we call it, this is what is needed to bring philosophy back to earth, to real life, to real objects, to survival and reproduction, to finding more effective survival responses to the environment, to help cultures and religions harmonize with real biological human nature and the natural world---the main reason intelligence was developed in the first place.