One day, a little gray cat went for a walk. The cat saw a big tree and wanted to climb it. So, the cat went up the tree and saw a bird. The bird said, "Hi, cat! Be careful up here!"
The cat said, "Why?" The bird said, "There is poison in the tree. It can make you sick. Do not touch it!" The cat saw the poison and stayed away from it.
The cat climbed down the tree and went home. The cat told its friend, a dog, about the poison. The dog said, "Thank you for telling me. We must be careful when we play." The cat and the dog were safe and happy because they knew about the poison. They played together and had fun.
