Limb development, evolution, and regeneration and repair: Part two

In this second volume of Developmental Dynamics' special issue dedicated to “Limb development, evolution, regeneration and repair,” scientists keep addressing these research themes using a variety of animal models (eg, insects, fish, amphibians, birds, mammals and reptiles) and in the wide range of tissue types that compose the limb (eg, nerve, bone, muscle, skin, connective tissues, etc.). Altogether, these studies illustrate the multifaceted nature of the limb, demonstrating if necessary that the limb remains a conceptual playground and a very medically relevant system.