Some would say consciousness is the greatest unsolved mystery in biology... maybe, but in my mind there's a bigger one:
I put the origin of life as "the greatest unsolved mystery in biology" because, despite many breakthroughs, scientists have yet to develop a complete model of how non-living materials can transition into living organisms on a previously lifeless planet. This fundamental question involves figuring out how simple organic molecules organized into complex structures capable of metabolism, reproduction, and evolution—the defining characteristics of life.
This clip is from our video "What is the metabolism-first hypothesis, an angle of study on the origin of life that's seldom talked about but deeply fascinating.
Stated Clearly