Twelve poems present a variety of animal homes and mate-attracting constructions. Arachnids (trapdoor spider, garden spider), birds (red ovenbird, white stork), fish (stickleback, pufferfish), insects (termite, paper wasp), mammals (star-nosed mole, beaver, prairie dog), and a reptile (the king cobra) are each introduced by way of a double-page spread and a simple two-to-eight stanza poem. In four sections--building underground, on land, in the water, and in the air--animals are shown building webs, nests, food traps, and tunneled homes, along with their mates, eggs, or young. Laroche's layered, cut-paper illustrations are clear and intriguingly detailed, handsomely supporting the informational content of each poem. Rich colors and varied textures allow this 3-D original artwork to work well in two dimensions. Harrison's poems employ varied voices, rhythms, and formats; all are memorable and easy to understand. Some are humorous: a busy stickleback male appeals to a potential mother of his family: "The best nest / that's ever been! / Please, / Ms. Stickleback, / swim in.

" Backmatter gives each animal an explanatory paragraph and, for several, a suggestion of books for further exploration. The author's and illustrator's own sources are not indicated. A bonus poem and terrific illustration on the last page describe "A different kind of builder," sun coral, which creates coral reefs by congregating together. A fine synthesis of poetry and science. -- Kirkus Reviews.