It is believed that the human body uses yawning as a means of cleansing excess energy. Both people and animals yawn, but for different reasons. For each type of creature, this phenomenon means something different.
The mechanism of this phenomenon is quite complex, despite this, people try to yawn imperceptibly, and animals do not pay attention to etiquette and yawn when they need to. Yawning is a deep sigh that occurs involuntarily. It is noticed that everyone yawns, and the reasons for this phenomenon are different. Predatory cats, for example, yawn before hunting to increase oxygen levels in their blood. Monkeys - to communicate something, and fish - before swimming faster. The hippopotamus opens its mouth in order to release "gas" - digestive waste. One of the most peculiar creatures on earth are snakes, and the tongue is their most important sensitive organ. With its help, it receives information about various substances that are on the surface or in the air. For example, a python, having caught a prey, grabs it with its teeth, then squeezes the body rings, gradually squeezing it. The prey is swallowed whole, and even one that is several times larger than itself. This process is facilitated by the peculiar structure of the jaws, and food enters the stomach thanks to the muscular esophagus. The python can swallow prey for a long time, and its muscles get tired during this time. The intensity of the work of all internal organs also increases. The snake is able to increase the size of the heart, liver, intestines. After the digestion process is complete, the internal organs should shrink. The python uses yawning to restore its normal state. A large python is able to swallow an antelope, while its jaws will increase many times. In order to put them in place, he will have to yawn. Swallowing a portion of oxygen, the giant snake improves the digestion process, because if undigested food remains in its stomach, the python runs the risk of poisoning.
