Naked mole-rats are long-lived rodents known to be resistant to the development of cancer, yet their immune system remains poorly explored. Now, in a study published in Nature Communications, Guillem Sanchez Sanchez from the team of David Vermijlen with collaborators from the University of Rochester and from IMGT identify natural killer-like effector γδ T cells that express a dominant γδ T cell receptor and may serve a role in tumour immunosurveillance.