Chocolate or vanilla? Creamy peanut butter or crunchy? Cats or dogs? On some matters in life, every kid must take a stance. Ever since the first youngster in history had a pet, cats vs. dogs has been a hotly debated issue at recesses and lunch tables worldwide. Which one's better? Smarter? This reader presents the facts in fun and informative fashion. Kids will love the stimulating Level 3 text as they decide the answer to this question for themselves. National Geographic supports K-12 educators with ELA Common Core Resources. Visit natgeoed.org/commoncore for more information.  From the Trade Paperback edition.