As I don't know the details of 'little rex story', the main idea might be centered around Rex's growth. If Rex is a young character, perhaps the story shows how he matures and learns important life lessons through his experiences.
I don't have enough information to determine the main idea of 'little rex story'. It could be about friendship if Rex has friends in the story.
Since we don't know the actual content of 'little rex story', the main idea could be about discovery. Maybe Rex discovers a new world or a hidden secret in the story. He could be on a quest to find out more about this discovery, facing difficulties along the way but also learning a great deal about himself and the world around him.
It's possible that the main idea of 'the little girl story' is the little girl's exploration of the world around her. She could be curious about different things, go on little adventures in her neighborhood or in her imagination, and through these experiences, she discovers new aspects of herself and the world.
The main idea might be the little dinosaur's journey of growth and survival.
The main idea of 'the little cloud story' could be centered around the little cloud's exploration of its own identity and purpose. It may start with the cloud being born or formed in the sky. Then it goes on to discover what it can do. It could be about how it contributes to the weather cycle, for instance, by bringing rain to the earth or providing shade from the sun. It might also be about how the little cloud makes friends or has encounters with other clouds or sky - related elements, which helps it grow and understand its place in the sky.
Since I don't know the exact 'the little birds story', it might be about the adventures of little birds. They could be flying around exploring new places, facing challenges like bad weather or predators, and interacting with other animals in their environment.
I'm not sure specifically as I don't know the exact 'the little things story'. But generally, it might be about small details or events that have significance, like how little things in life can bring big changes, or how noticing the little things can make a person more aware of their surroundings and relationships.
I don't really know the 'little stars story' well enough to say for sure, but perhaps the main idea could be about the beauty and wonder of the stars.
The main idea could be about the adventures of a little swallow. Maybe it's about its journey, the places it visits, or the friends it makes along the way.
Without knowing the specific content of the 'little petey story', it's difficult to define the main idea precisely. But generally, in children's stories, main ideas often revolve around positive values such as loyalty, perseverance, or the importance of family. Maybe in this story, Little Petey has to overcome some difficulties through these values.
I'm not sure as I haven't read the specific 'the little hut story' but generally, it could be about the experiences or events related to the little hut. Maybe it's about the people who live in it, or the things that happen around it.
The main idea is usually about the little duckling's journey of self - discovery. It often faces challenges and feelings of being different, but in the end realizes its own value.