This is a citation list accompanying my thread on the planarian worm. A clarification: there are actually hundreds of species of planarians, and despite being closely related, some of them are capable of the full-body regeneration described in the thread, while others have limited regenerative capacity, and still others show no regeneration at all. This divergence is itself a fascinating area of inquiry, as described in Evolutionary dynamics of whole-body regeneration across planarian flatworms.