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Endangered Livestock
Modern food production has changed agriculture drastically. It used to be that many different breeds were used on farms to produce meat, milk and eggs. Today, the breeds that produce maximum output are used to the exclusion of all others. In the United States, one breed of dairy cattle (the Holstein) produces almost all the […]
Dog Breeding
When dogs were first domesticated in prehistoric times, humans encouraged the survival of certain types of dogs by feeding and caring for the ones that were useful to them, and killing or neglecting the others. As a result, certain dog types emerged. People encouraged these distinctions by mating dogs of a certain type with each […]