Strings, this piece is a contemporary version of…

Strings, this piece is a contemporary version of the classic fairground attraction "Pulling Strings". Instead of worthless prices, you can win new life. The embryos represent the circle of life by eating their own tail (Uroboros). The prices are no surprise; following the thread you can influence the outcome. Natural selection in the hands of people follow other criteria, than when it's left to run its course. How does it feel to have the power in the selection of new life?