Why don t crocodiles survive without evolving?

Crocodiles have had two experiences of entering land, one was after the Permian mass extinction, when the crocodiles began to develop and the Lloyd's crocodile appeared. They have long legs that can run, and even have longer hind limbs than forelimbs, and have the ability to run bipedally, similar to early dinosaurs, which were supposed to be on their diet. However, the mass extinction at the end of the Triassic allowed the dinosaurs to overtake them, and the crocodiles were beaten back into their form in the water.

But there are still some giant amphibian crocodiles that can prey on dinosaurs.

Crocodiles love to pack, and hunting tends to cooperate, which increases the success rate. Crocodiles can eat for several months, and in more difficult cases, they can not die if they do not eat for two or three years, and crocodiles also hibernate. So when there is a shortage of food, it is easier for the crocodile to carry it.

Crocodiles prefer rivers, lakes, swamps and other environments, and prefer to burrow, and this lifestyle can relatively buffer the impact of environmental upheaval. Crocodile cubs live in the water, and when the Earth turns into a sea of fire, they have a much better chance of surviving than dinosaurs.

Why some reptiles, including crocodiles, are not extinct. This is related to several basic characteristics of reptiles, including the fact that many reptiles hibernate and that they have a much lower metabolism than dinosaurs, so they need less food.

Crocodile as one of the few prehistoric creatures that can survive to the present, the reason may be related to his diet, although as a carnivore, to hunt large creatures for food, but the crocodile's hunting method is obviously very different from other species, it belongs to the latent sneak attack type. The biggest advantage of this type of hunting is that it requires very little physical energy. Therefore, when a disaster occurs, the crocodile can hide itself very well, and at the same time ensure the stability of the body's metabolism.

At the same time, regardless of what happened when the dinosaurs became extinct, crocodiles lived in the water, so they avoided a lot of problems.

When a large-scale catastrophe struck, reptiles including crocodiles, turtles, and lizards survived extinction by going into a dormant state and reducing their food intake, while the dinosaurs all went extinct.

The main thing is that it is close to the water source, and any animal has to drink water close to the shore to wait for a sneak attack, and its force value is not weak