Colorado is pretty far from any ocean, so our kids have very little first-hand experience with tide pools, tides, waves, beaches, shells ... and all the life forms that inhabit salty water. A lot of books overwhelm the young reader with too much info. I particularly like that this story focuses on a limpet. I suspect that every child will remember something about limpets after reading this story, and they'll probably look for limpets when visiting the ocean.
I also like the important idea that it's best to leave living things where you see them. (The gentle attempts at removal were good; I cringed at some of the harsher methods.) Being relatively uninformed about limpets ... would they really stick to a person's skin?
The book begins,
Not long ago, on a Sunday, Sally was down on the beach exploring, when she found a brightly colored, bigger-than-usual limpet shell.