Some Bible students speculate that before the Flood humans and animals alike ate only plants. Before the Flood: “I have given every green plant as food for all the wild animals (Genesis 1:30 NLT). After the Flood: “Everything that moves, everything that is alive, is yours for food. Earlier I gave you the green plants, but now I give you everything for food” (Genesis 9:3 NCV). A Visual Walk Through Genesis, page 25.