Themes: American Presidents, Pets. Many cats and dogs have lived in the White House. But did you know one president had a pet raccoon? Another had an alligator. Some First Families had so many pets, the media said they turned the White House into a zoo. Red Rhino Books Nonfiction is the first Hi-Lo children's nonfiction series at a first-grade reading level for students in grades 4–7. Visually appealing fullcolor photographs and illustrations—along with fun fact boxes—keep these books flowing. Also includes prereading comprehension questions along with a 20-word glossary for further reading support.