SV'S 69/Growth of Calisthenics on Instagram: "It all begins with a single cell. From one microscopic zygote, life unfolds through a sequence of perfectly timed events that lay the foundation for the entire human body. This animation reveals the earliest stages of development with striking clarity, showing how something almost invisible becomes a complete biological blueprint. After fertilization, the single cell begins to divide rapidly, a process called cleavage. These early divisions don’t inc