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Seals may be able to directly sense oxygen levels in their blood, an ability humans don't possess. A Scottish study reveals these marine mammals adjust their dives based on this ...

A pulse oximeter is a small device that typically clips on to your finger, toe, or earlobe to measure oxygen levels in the blood. Pulse oximetry is a quick and easy way to determine how well ...

The finding suggests gray seals (Halichoerus grypus) perceive their own blood oxygen levels, an ability that prevents them from drowning on dives that can last up to an hour. Mammals need oxygen ...

A team of scientists with the Sea Mammal Research Unit, School of Biology, University of St Andrews, in the U.K. has found that gray seals are able to monitor their blood oxygen levels as a means ...

My blood oxygen levels are fine, according to my Series 9 Watch. Credit: Stan Schroeder/Mashable Apple has appealed the court's decision, and it's possible that the feature gets re-introduced if ...