A hybrid is the offspring of the mating of two different species also known as interspecies reproduction. There can be unexpected consequences to interspecific relations and often it is not known what the exact result of any type of interspecies mating will be. The hybrid offspring may not be viable or the effects of its dual ancestry may influence both its physical and/or mental health. The different natural dispositions of both species may clash and create emotional difficulties in the hybrid. Also, the attainable age of a hybrid is difficult to estimate, the hybrid may die younger that is normal for both species or it might outlive both. (JB: "Just Between Perceptions")