Plenty of advantages of evolutionary advantages to intelligence. And plenty of progressive fossil records between our common ancestors and other primates. Kind of an amazing overobuncance of fossi records on that.
“And plenty of progressive fossil records between our common ancestors and other primates.”
I agree... But the one thing evolution cannot explain is why and how each time one homo species came about the previous homo species just disappeared almost immediately in the relative time line. Even inbreeding and hybridization does not explain this fact. Each species in the chain had an expiration date to make room for the newer more advanced modified model.
DNA has now exposed this mystery...