Crocodiles mainly feed on fish, waterfowl, rabbits, deer and frogs, and are carnivorous animals. Crocodiles are generally regarded as aquatic animals, but this aggressive creature may have some secret "skills".
The latest research found that climbing is a common behavior of crocodiles. They climb to get a better hunting position, or to get as much contact area with the sun as possible. Britten, a researcher at Charles Darwin University, said that he had witnessed a freshwater crocodile with a length of 1.5 meters climbing a steep river bank and trying to climb a fence with a height of 1.8 meters. "Crocodiles not only bask in the sun on the shore, they sometimes walk around. Crocodiles are actually very sensitive animals, and their sensitivity even exceeds human imagination. "
Saltwater crocodiles are more dangerous than their close relatives, freshwater crocodiles.
Modern crocodiles and birds have similar breathing patterns and auxiliary breathing systems. It is possible that the Triassic primitive main dragons evolved this respiratory system, and most of their descendants also have similar respiratory systems, such as dinosaurs, pterosaurs, crocodiles, etc ... The researchers also speculated that the special breathing pattern of the main dragons is also one of the reasons why they gradually gained an advantage in the competition with mammals and reptiles. During the Triassic period, the oxygen content in the atmosphere was low, and the special breathing mode of the main dragon made the breathing efficiency higher and the competition more intense. A study on 20 10 found that American alligators have a unique way of breathing. [4] This study found that when alligators inhale, the inhaled air will enter the second bronchus, flow through the third bronchus for exchanging gas, and finally enter the first bronchus. When the Chinese alligator exhales, the air will pass through the second bronchus, the third bronchus, the first bronchus and finally exhale from the trachea. Modern birds have a similar way of breathing. In the process of breathing, air circulates in the airbag in one direction. On the other hand, mammals breathe in repetitive directions, and gas is exchanged in alveoli. In addition to modern birds, many evolutionary branches of dinosaurs have also been found to have airbags, which can improve their breathing efficiency.