Citing a research published by Science Direct in MED Told It is also possible to breathe through the anus. A group of scientists conducted several experiments on pigs and rats based on the slow metabolism of turtles. In this, the intestines of the animals were cleaned to thin the mucosal lining, thereby reducing the obstruction of blood flow. After this those animals were kept in a room where there was no oxygen.
It is believed that because turtles have such a lining, they are able to breathe through their anus, which enables them to survive the winter. According to the report, “The animals that were stopped from breathing and their intestines were deprived of ventilation died after about 11 minutes. At the same time, “animals that received intestinal ventilation without intestinal cleansing survived for approximately 18 minutes.” This shows that some oxygen was rising up from that place.
Research further suggests that 75 percent of the animals whose intestines were cleaned and received oxygen under pressure survived for an hour.
This proves to a large extent that rats and pigs are able to breathe through the intestines under the right conditions.
Researchers believe that other mammals, such as humans, can also survive by essential breathing through their anus. However, this will require cleaning of the intestines, which is not possible at the moment. So for the time being the least dangerous methods are being looked at to achieve similar results, such as the use of oxygenated liquids such as perfluorocarbons.<!–