Incoming Resources
- Scary creatures of the soil, written by Gerard Cheshire
- Under one rock, bugs, slugs, and other ughs, by Anthony D. Fredericks ; illustrated by Jennifer DiRubbio
- What's in the dirt?, by Martha E.H. Rustad
- Under ground, how creatures of mud and dirt shape our world, Yvonne Baskin
- Life under a stone, Janet Halfmann ; photographs by David Liebman
- Underfoot, by David M. Schwartz ; photographs by Dwight Kuhn
- Gross things under your feet, by Greg Roza