I read recently on this site a point that I had never thought about; that the Egyptian empire overlapped the year of the flood.
The hieroglyphics therefore, are proof in pictures of the diversity of animals on the earth at that time. Without even researching I can name a few different types of snake that appear on the hieroglyphics, the horned viper and cobra.
According to some literalists, Noah only took one kind of each animal, so if he only took a Cobra for example, to represent the snake world, then how on earth were there various types of snakes, already existing, the instant after Noah left the ark according to the hieroglyphics? Hieroglyphics depict lion hunts and herds of animals like gazelles etc , so it suggests there was always an abundance of animals without interruption.