Kdatlyno are huge, 10-foot-tall (3.0 m) bipeds with long arms. They have a thick brown hide, curved claws at knees and elbows, and retractable claws on the knuckles of their hands. Their heads are eyeless and noseless, with a gash of a mouth. Above that is a goggle-shaped tympanum (eardrum), which allows them to "see" by way of sonar. Kdatlyno create 'touch sculptures' as an art form. Other species need to touch this art, rather than look at it, to appreciate it properly.
A slave species of the Kzinti until humans freed them, although some are still legal Kzinti slaves. There is at least one mention of them being used as elite Imperial Guards for the Kzinti Patriarch, presumably due to both their great strength and their uninvolvement in Kzin imperial court politics.
Native to the planet Kdat.