Before the Flood came, all the people and all the animals were vegetarian. Some say that some animals today cannot live without meat. During World War II, the zoo in London, England, had no meat to feed the lions so they fed them cabbage and other vegetables. They did fine. For years, Hollywood moviemakers used a lion called Little Tyke that refused to eat meat. In the 4,400 years since that Flood, some animals' digestive tracts may have "adapted” to an all-meat diet, making it difficult or maybe even impossible to go back to a vegetarian diet, but that is not real evolution. Going from a plant-eating lion to a meat-eating lion is a minor change, compared to the evolution theory, which says they changed from a rock to a lion! (Slowly of course! Unless you are from Harvard).