These underground rodents are the first mammals found to actively choose air with lower-than-normal oxygen levels. Their ...

Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal ...

Pulse oximeters use light to measure how much oxygen is in a person’s blood. For most people, a normal pulse oximeter reading is between 95% and 100%, researchers said in background notes. Readings ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxaemia) give ...

The discovery fundamentally changes the understanding of a structure in the avian eye that has been misinterpreted for centuries.

Have you ever felt "off" and gotten bloodwork done, only to find out your results were all within the "normal" range? That ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxemia) give ...

Learn more about the 2004 murder of 19-year-old Courtney Coco and the surprising suspect convicted of her murder.

By analyzing brain activity in mice, they determined that a fat molecule called PIP2 acts as a brake on Piezo1. When brain ...

When oxygen disappears, most fish suffocate. This one ferments its own metabolism and waits months for spring beneath frozen ...