"Sutton's large-scale illustrations help children to visualize
microorganisms and processes that are too small to see. . . . A handsome
and rewarding picture book." -- Booklist (starred review)
All around the world--in the sea, in the soil, in the air, and in your
body--there are living things so tiny that millions could fit on an
ant's antenna. They're busy doing all sorts of things, from giving you a
cold and making yogurt to eroding mountains and helping to make the air
we breathe.