Incoming Resources
- Duck and Hippo give thanks, by Jonathan London ; illustrated by Andrew Joyner
- Hippos, by Miriam Schlein ; scientific consultant, Alan Root ; photographs by Leonard Lee Rue III and Len Rue, Jr
- Hippos, by Melissa S. Cole
- Hippos, by Sally M. Walker ; photographs by Gerry Ellis
- Duck and Hippo, lost and found, by Jonathan London ; illustrated by Andrew Joyner
- Hippos are huge!, Jonathan London ; illustrated by Matthew Trueman
- Mammals, [Pat Morris, Amy-Jane Beer, Erica Bower], v. 5