Chloe and Professor Adams find a rattlesnake about to gobble up a mouse outside the professor's house. Then Chloe gets an idea: why not splice the snake with Essence of Cattle to make it friendlier? After the mutation is complete, Chloe and the professor have a cute but gargantuan cattlesnake problem on their hands. Aligned to Common Core Standards and correlated to state standards. Calico is an imprint of Magic Wagon, a division of ABDO.