Protozoa Protozoa – A Poseidon Adventure! (click through for more info and purchase) ages 8-14 Join the “fingerprint people” as they go on their best adventure ever! Their rental boat turns out to be a shrinking machine that makes them small enough to go fishing for protozoans like Paramecium and Ameba. After learning how to measure very small things in units called microns, they interact with many bizarre-looking creatures. Pond scum turns out to be tiny living organisms that sometimes have complex and sociable lives!