Leo is a young boy who loves to explore nature. Every weekend, he goes to the park with his parents. Leo enjoys watching the birds fly and the squirrels play. One sunny Saturday, Leo discovered a small pond at the park. He was excited to see fish swimming in the water and frogs hopping along the edge. Leo's parents taught him the importance of keeping the environment clean, so he always picks up litter when he visits. This makes him feel proud and helps protect the animals and plants that live in the park.