1 ago 1971 ano - The Les Enfants Terribles project begins. 8 embryos are created using Big Boss' DNA and enucleated egg cells from a healthy donor. 6 of these embryos are aborted to improve growth in the embryos that were to become Solid and Liquid Snake. Genetic modification gives one Big Boss' dominant traits, and the other his recessive ones. Later, a third son was created using a balance of the two. Solidus Snake Eva acts as the surrogate mother. (Linha do tempo)