>be healthy male fiddler crab>born with slightly smaller trait which happens to be arbitrarily selected for by females>die a virgin, bloodline endswhy is this rewarded? why doesn't this ultimately end with every species falling down a Fisherian runaway?
>>5174640It’s not hard to understand, brother. Simulations have literally been run on this. In one model, researchers simulated populations of males with varying trait sizes, while females were allowed to choose between mates based on those traits.Turns out, the greater the variation in male mating success, the stronger the selection gradient will be. Males with larger preferred traits tend to father more offspring, therefore sexual selection will encourage the development increasingly exaggerated, hypertrophied traits.Doesn't mean traits can get infinitely large, though. Eventually the survival cost will outweigh the selection benefit.
>>5174641>the greater the variation in male mating success, the stronger the selection gradient will be.doc, in english please
>>5174645big guy gets more shit and the little guy gets less shit
