How animals have changed since humans started breeding them By: Business Insider June 24, 2017 at 11:00 AM EDT Humans have a long history of breeding animals for food. The animals, however, may not look the same now as when they were first domesticated.Photo courtesy of Kersti NebelsiekFollow Tech Insider: On FacebookSee Also:First ever close-up footage of DNA replication will have experts rewriting science textbooksBaboons can teach us a lot about being too stressedWhy Swiss cheese has those mysterious, giant holes