This the tale of dolphins and how they got their blowholes. Long ago before your grandmother, great uncle, even teacher was born, dolphins didn't had blowholes. They had a smooth body and no hole in their sleek, grey back.
One day a baby dolphin, who was the daughter of King Neptune's dolphin, was swimming along, looking for seaweed for seaweed pasties. She was not looking where she was going, as she was trying to open a clam. Suddenly, a fisherman's hook went into the water. She grabbed onto an octopus, pulling on his stub of legs. The octopus yelped in pain, as he now had long legs! And that is why octopi have long legs.
Anyway, the fisherman threw in a stone to stop the baby dolphin moving. It went deep into her back, creating a small hole. She liked her hole and all the other dolphins had one too.
That is how dolphins got their blowholes!