We tend to think that a tomato is a tomato, a carrot a carrot, but over the years, farmers have introduced new genetic iterations of both crop and livestock. The wheat used to make bread today, for example, is different than the wheat used 20 years ago in that same recipe. Moreover, just like dogs, there can be many different of breeds – or in the case of crops, varieties – within a single species.
But mass-production in farming has caused a homogenisation of certain foods. “People started using just a couple of breeds for whatever they’re doing – meat, milk, eggs or fibre – in order to get the same sized animals to fit on an assembly line for processing and transportation and – more importantly – to make them grow as quickly as possible,” explains Ryan Walker, marketing and communications manager at the US-based Livestock Conservancy. “Agriculture today is all a numbers game.””—BBC, The World’s Most Endangered Food