In this experiment with planaria (a type of flatworm), learners will investigate the capability of different body sections to regenerate. When a planaria’s head is cut off, the remaining tail section will regenerate a head. The regenerative capacity of different body sections may be an indicator of the location of neoblasts (stem cells). Learners will compare how long it takes for worms cut in different places to regenerate a head. Learners will collect data over the course of 7-14 days.