Grey Hybrids

Hybrids can be born from a Grey (necessarily male) and a female of another species, thanks to the extraordinary adaptability of the grey's reproductive system. The biology and physiology of a hybrid is impossible to predict, and even multiple children from the same father and mother are usually wildly different in layout and structure. Hybrids will generally have mixed anatomical features, possibly with organs from the mother that become vestigial due to the resilience from the father's side. Hybrids almost always inherit some psychic powers or Dark Ocean affinity. Hybrids usually age over timescales intermediate between the mother's and the father's lifespan.

Important Hybrids
The prophetess Jeetus of Anaïs' narration in Terms & Conditions is weakly implied to be a Grey-Damorran hybrid.
 * Wilt (Grey-Human)