The evolutionary history of lymphoid organs | Semantic Scholar

A surprising role for a subset of innate lymphoid cells in regenerating the thymus is demonstrated, which has implications for restoring and maintaining normal T cell immunity during conditions when thymUS function is diminished.

The appearance of a lymphocyte-based recombinatorial system of anticipatory immunity in the vertebrates may have been driven by a need to facilitate developmental and morphological plasticity in addition to the advantage conferred by the ability to recognize a larger portion of the antigenic world.