Planarians, small flatworms less than a centimeter long, have a rich and controversial history in the science of memory. It all began in 1955, when biopsychologist James McConnell and his colleague ...
If you dissect a planarian (Schmidtea mediterranea)—a flatworm about half an inch long—into 279 tiny fragments, each fragment can regrow into an entire animal. New research from the lab of Alejandro ...
Jacobson, A. L., J. Anim. Behav., Suppl. 1, 76 (1965). The Chemistry of Learning: Invertebrate Research (edit. by Corning, W. C., and Ratner, S. C.) (Plenum ...