# File lib/ai4r/genetic_algorithm/genetic_algorithm.rb, line 118
      def reproduction(selected_to_breed)
        offsprings = []
        0.upto(selected_to_breed.length/2-1) do |i|
          offsprings << Chromosome.reproduce(selected_to_breed[2*i], selected_to_breed[2*i+1])
        end
        @population.each do |individual|
          Chromosome.mutate(individual)
        end
        return offsprings
      end