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),
Which? Which? Which? is a brand name used by the Consumers' Association, a registered charity (No. 296072) and company limited by guarantee (No. 580128), which is based in the United Kingdom. It exists to promote informed consumer choice in the purchase of goods and services by testing products, highlighting inferior products or services, raising awareness of consumer rights and offering independent advice. The association owns several businesses, including "Which? Financial Services Limited" ("Which? Mortgage Advisers"), "Which? Legal Limited" and "Which? Limited", which publishes the "Which?" magazine. The vast majority of the association's income comes from the profit it makes on its