Some animals burrow into the ground, letting air and water reach plants\' roots.
Features include a table of cont.
Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject.
Ecosystem Architects: Animals Building Incredible Structures looks at how animal builders make the world a better place, as well as the threats they face and how people can protect them.
When they\'re grown, other animals can reuse the nest.
Others build nests in which to raise young.
Some animals burrow into the ground, letting air and water reach plants\' roots