es ) ▁can ▁inter bre ed ▁with ▁humans , ▁bearing ▁fert ile ▁off spring . ▁ ▁An ▁evolution ary ▁draw back ▁to ▁their ▁near - imm ort ality ▁is ▁that ▁nearly ▁all ▁K her an ▁females ▁are ▁infer t ile ; ▁only ▁very ▁rarely ▁will ▁a ▁K her an ▁produce ▁off spring . ▁This ▁is ▁a ▁natural ▁check ▁against ▁over pop ulation . ▁Only ▁one ▁in ▁ 1 0 , 0 0 0 ▁K her an ▁females ▁is ▁capable ▁of ▁giving ▁birth , ▁and ▁only ▁then ▁at ▁her ▁very ▁first ▁m ating . ▁Of ▁those , ▁only ▁one ▁in ▁approximately ▁ 1 0 , 0 0 0 ▁will ▁become ▁pre gn ant , ▁and ▁only ▁ 1 ▁in ▁ 1 0 0 0 ▁of ▁those ▁b ab ies ▁will ▁be ▁born ▁alive ; ▁the ▁rest ▁are ▁still born . ▁The ▁saving ▁grace ▁of ▁the ▁species ▁is ▁that ▁this ▁infer til ity ▁does ▁not ▁seem ▁to ▁apply ▁when ▁the ▁K her an ▁is ▁m ating ▁with ▁another ▁species , ▁as ▁Earth ▁has ▁various ▁K her an / human ▁hy br ids . ▁ ▁More ▁powerful ▁K her ans ▁are ▁known ▁as ▁L ords ▁and ▁may ▁possess ▁tele kin etic ▁and ▁energy ▁manip ulation ▁ab ilities . ▁M ister ▁Maj estic , ▁Lord ▁Emp ▁and ▁Y ohn ▁K hol ▁are ▁K her ub im ▁L ords . ▁▁ ▁Sh apers ▁are ▁a ▁sub species ▁of ▁K her ans . ▁They ▁are ▁shapes h if ters ▁who ▁are ▁able ▁to ▁manipulate ▁the ▁mole cular ▁structure ▁of