Yellowtail is a mesmerizing, family-friendly app for drawing animated, wiggly lines! Just drag your finger to draw an ever-changing display of lively, worm-like textures. The software repeats your marks end-over-end, allowing you to author a lines shape and its quality of movement at the same time. A simple menu lets you clear the screen, or choose between two different animation styles. Good for kids as young as 2 years old!