If Not for the Cat

On these glorious and colorful pages you will meet a mouse, a skunk, a beaver, a hummingbird, ants, bald eagles, jellyfish, and many others. Who is who? The answer is right in front of you. But how can you tell? Think and wonder and look and puzzle it out! A creature whispers: If not for the cat,And the scarcity of cheese,I could be content. Who is this creature?What does it like to eat?Can you solve the riddle?