By Holling Clancy Holling
The whole life of a hermit crab named Pagoo, from a speck of drifting larva to a full-grown crab, told as a story with a tide pool's worth of detailed drawings in the margins.
Holling Clancy Holling had a gift: he'd take one small creature and follow its entire life, and make you care about it like a character in a novel. Here it's Pagoo, a hermit crab, who starts as a nearly invisible speck floating in the plankton and grows up in a rocky tide pool, learning to find shells to live in, to molt out of his old shell, to dodge octopus and hungry fish, and to trade up as he grows. Down every margin run Holling's meticulous pencil drawings, the anatomy of a crab, the residents of the tide pool, how a wave works, so the story on the page and the science alongside it move together. It's a classic living book, dense and rewarding.
This is the deeper, more sustained read on the shelf, the one for a child who's ready to stay with a single creature and really learn a habitat. Holling teaches an enormous amount of marine biology, molting, camouflage, the tide-pool food web, without a textbook in sight, because it's all carried by Pagoo's own small dramas. It builds the patient, close-looking attention that nature study is really training, and it rewards the child who slows down.