[How did Noah get food for all the millions of animals inside the ark for a whole year?]
1. Perhaps God just shut down their need for food by nourishing their bodies without them having to eat. God has the power. He can do anything.
2. Remember Jesus giving that sermon on the mount and there wqs a multitude of hungry people? Jesus told the disciples to take the 7 loaves and the 7 fish and start feeding them. They did and the fish and bread never ran out. God has the power and can do anything including feeding people from nothing. Even a wedding feast can run out of wine and Jesus can make more.