Yes and the gears would be hard to isolate as the lone cause (adults have more experience fighting prey etc.) so maybe you'd have to genetically engineer two gr

Yes and the gears would be hard to isolate as the lone cause (adults have more experience fighting prey etc.) so maybe you'd have to genetically engineer two groups one with gears and one without. Either way the hypothesis they gave as to why the gears are eventually mutated away makes sense but has me wondering why they don't keep replacing them instead of settling on living without them. Thus I'd like to quantify the edge said gears provide as a starting point for the investigation :)