Research Article

Planarians Sense Simulated Microgravity and Hypergravity

Figure 1

(a) Planarians’ regeneration timing. When planarians are cut into head, trunk, and tail pieces, they produce a blastema (unpigmented region at day 2), and the subsequent regeneration of all missing tissues in 10–15 days. The yellow asterisk labels the pharynx. (b) The two environments in which planarians were cultured both with sample and control groups. Animals were included in falcon tubes, filled with planarian water, at a density of 10 animals per falcon.