Study finds that gray seals can follow blood oxygen, drowning

Marine mammals rely on oxygen To survive, but some species remain underwater for a long time without breathing. Scientists from the University of St. Andrews wanted how many gray stamps manage their time underwater without a signal to build a carbon dioxide. The six adult gray seals were placed in a controlled environment to observe their diving forms. The seals were allowed only to the surface chamber, where researchers adjusted the level of oxygen and carbon dioxide to verify their answers.

Research confirms oxygen as primary trigger

According to teaching Published in science, various air compositions have been tested to sink their impact on times. The air is adjusted in the respective breathing. Normal air, increase of oxygen, dumped oxygen and raised Carbon dioxide Levels: When the oxygen level increased, the seals remained under water longer. When the oxygen has been reduced they appeared early. Changes in carbon dioxide have not changed their behavior, offering oxygen, not carbon dioxide, determining when they are air.

Unique adaptation of marine mammals

Researchers say gray seals have an internal system to track oxygen level. This allows them to reach the surface before reaching dangerous boundaries. This ability is disturbed by drowning and can be common in other sea species. Because deep diving mammals need to carefully manage oxygen, such mechanisms can be present in whales, dolphins and other seals.

Experts weigh in discovering

Lucy Hawks from the University of Exteri University and Jessica Kendall-Bar California, San Diego University, under discussion the effect of study. They noted that understanding this adaptation sheds light on how marine mammals survive under extreme underwater conditions. Further research can study how this system works in different types and environments.