Matt, Sam, and the Swimming Rock

Soft cover. Writted and Illustrated by Elizabeth Ann Harlan.
 
Matt, Sam, and the Swimming Rock is a lighthearted look at dealing with differences. Two best friends, Matt (a llama) and Sam (a sloth), like to walk through the zoo at night. One night they meet a new animal friend. As they play together, they see how they are different and how they are alike. They learn that different is good as we all do some things better than others.