Note: This story is in part inspired by an ancient myth, possibly Native American, though I’ve also heard it might come from India.
Long ago turtle's shell was smooth as stone. Like today he lived in small ponds and searched for food. It was summer and there was plenty to eat. Turtle swam around looking for insects and crustaceans. Occasionally he’d poke his long neck out of the water and take a look around.
On one such occasion turtle noticed that some of the trees were losing their leaves, it was windy and the air was growing cold. There were less insects and crustaceans about. Winter was coming and soon there would be no food to eat. In the distance Turtle saw Heron, a large bird with long legs, preparing to fly north with the sun. Turtle approached Heron and asked if he could accompany her on her journey. But how would she carry him? She asked. Turtle had an idea. He fetched a stick and asked Heron to hold it between her feet. Turtle gripped the stick with his front claws and held on tight. Okay, he said, I'm ready. So Heron flapped her wings and took off into the air. Higher and higher she went, all the while Turtle held tight to the stick. When they were quite high Turtle looked down. He'd never been so high up before and was shocked by the bird's eye view! So shocked in fact that in his surprise he let go of the stick and began falling to the ground.
His heavy shell hit the ground with a loud crack, splitting into many pieces. Heron flew down after him. When she landed she found Turtle in a great deal of pain. He was too injured to fly and would have to remain in the pond while his shell healed. So Heron helped Turtle find a safe place in the pond to rest. She soothed him until he fell into a deep sleep. Turtle slept so long that when finally he woke the sun had returned and it was spring. Turtle's shell had completely healed. Every crack was now a scar. Together they made a beautiful pattern.
So it is that every winter Turtle recalls his misadventure and chooses to rest cozily in his shell, recover his energy and emerge just in time for spring.