Dzo Dzo A dzo (Tibetan མཛོ་ mdzo) (also spelled zo, zho and dzho) is a hybrid between the yak and domestic cattle. The word dzo technically refers to a male hybrid, while a female is known as a "dzomo" or "zhom". In Mongolian it is called khainag (хайнаг). There is also the English language portmanteau term of yattle, a combination of the words yak and cattle, as well as yakow, a combination of the words yak and cow. Dzomo are fertile (or, fecund) while dzo are sterile. As they are a product of the hybrid genetic phenomenon of heterosis (hybrid vigor),
Wild animal suffering misery is restored.Building on this, others have argued that the prevalence of r-selected animals in the wild indicates that the average life of a wild animal is likely to be very short and end in a painful death. According to this view, the average life of a wild animal should thus contain more suffering than happiness, since a painful death would outweigh any short-lived moments of happiness in their short lives. In "Bambi or Bessie: Are Wild Animals Happier?" Christie Wilcox argues that wild animals do not appear to be happier than domestic animals, based on findings of wild animals