Fifth day, animals in the water and air are created. Overview of animals on land. This does not preclude new species because this represents a partitioning of the original gene pool. Information is lost or conserved not gained. A new species could arise when a population is isolated and inbreeding occurs.
Sauropods are the true giants among terrestrial reptiles.
Although the skulls of sauropods portray the greatest differences between genera, they did have many features in common. All skulls were very small in proportion to total body size and the brains were very small. The eyes were fairly large and, in some types, the nostrils were on top of the head. Some even went into deep water. This hypothesis is strengthened by the fact that a number of the larger species had weak, pencil-like teeth adapted only for browsing on water plants.