The Baltic Sea is one of the most enclosed seas on Earth, trapping pollution for generations. As oxygen levels collapsed, normal ecosystems died, but microbes adapted instead. Scientists discovered ...

This large prospective UK study compared five low-cost fingertip pulse oximeters with arterial blood gas measurements and ...

Research reveals when and why ancient tropical seas transitioned from oxygen oases to marine dead zones, providing clues to ...

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

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

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

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

A group that tracks conflicts around the world says in a new report that “high levels of conflict are the new normal.” Here & Now‘s Indira Lakshmanan speaks with Clionadh Raleigh, director of the ...