Someone looked at sailing and surfing and thought, yeah but what if I had to do both at once.
Fun fact: A 12-year-old English boy built a rudimentary sailboard in 1958, a decade before windsurfing was officially invented.
Born without a mouth so it just shows up, looks massive, finds a mate, and dies.
Fun fact: Adults have no functional mouths and cannot eat, surviving their entire two-week lifespan on stored fat.