Seems to me you're asking where did Cro_magons come from. They seem to have appeared out of no where. Why were they so much more advance then other human-like creatures?

There seem to be those that believe cro-magons originated from Africa. Where temperatures were relatively warmer then Europe. Did their warmer environment some how contributed to their higher intelligence?

Basically, where heat reaches certain uniformity, a degree of intelligence is associated with it. But why? Is intelligence a matter of heat phenomenology? Intelligence seems most intimately connected with heat and its time

First a little something about heat that I know from my days at the great Texas A&M University.

A physicist speaks of heat as a uniform and definite measure. This is the calorie, an amount of heat necessary to raise one gram of water from a temperature of one-Celsius degree from 14.5 to 15.5 degrees. Fortunately heat can be measured or else its existence might well be challenged. The concept of heat is captured by its common measurability.
But since it is measurable in the way it is heat is theoretically accepted by the physicist as only being a transfer of energy and not as something in and of itself. The physicist would say that heat is simply a phenomenon of energy being transferred. When work is done heat results. A physicist conceives of heat as reduced to its measurable effects. Heat is what is measured from energy transfers. The physicist would say that heat otherwise does not exist. A chemist,on the other hand, speaks of the energy of heat produced by chemical interactions and as an energy with an identity that exists in and of itself in a thermodynamic interaction within an energetic system.

The temperature of a person remains rather stable. The heat of the body may be a characteristic of its overall capacity for intelligence in a system of chemical components and restrained or captured energies.
Is heat a substance under the control of or in command of a person’s intelligence?