Discusses the microscopic organisms known as phytoplankton and the important functions they serve in replenishing earth's atmosphere, in the marine food chain, and more.

Crabby is expecting just another boring day in the ocean, but Plankton decides to throw a best friends party--and even Crabby's long list of things he wants at the party will not deter him.

This book discusses plankton and the impact they have on the world.