How do platy fish give birth, and what is unique about their live birth process?

Platy fish give birth through a process called livebearing, where the female fish carries and nourishes the developing embryos inside her body until they are ready to be born. What is unique about their live birth process is that the female fish can store sperm from a single mating for multiple pregnancies, allowing her to give birth to multiple batches of offspring without needing to mate again.