From tigers to cougars and leopards to lions, this leveled reader is a great introduction to big cats, now available in Step into Reading, the premier early reader line From hunting to sleeping habits to the importance of preserving the cats' habitats, this Step 3 Step Into Reading Science Reader is full of exciting facts about these magnificent creatures that independent readers will eat up. Step 3 Readers feature engaging characters in easy-to-follow plots about popular topics; for children who are ready to read on their own.