GIANT MICROBES Brain Eating Amoebas 3 Mini Microbes Petri Dish Giant Microbes Brain-Eating Amoeba (Naegleria Fowleri) Petri Dish Includes A Petri Dish With Educational Facts About Brain-Eating Amoebas Petri Dish Includes 3 Different Mini Dolls Representing The 3 Growth Stages Of The Organism! Plush, Each Mini Microbe Measures Approx. 2 - 3" Approx. 1,000,000 Times Actual Size