SPIRIT LAKE, Iowa (KTIV) - Folks on Big Spirit Lake have been observing strange behavior in the fish there for the past few weeks because of low oxygen levels in the water. While this may sound like ...

A recent study explored one possible cause -- hyperoxia or high concentrations of oxygen given to such patients during surgery -- as opposed to doses more similar to air. The study concluded that ...

Janay Reece came back home to Baltimore to join WJZ in August 2023. Before coming back to the Charm City, Janay was a morning anchor and reporter for WDBJ7 in Roanoke, VA. She joined the WDBJ7 morning ...

A recent report out of Oregon State University paints a picture of how ocean oxygen levels have decreased in the Pacific Northwest over the years. The report found near-bottom levels of dissolved ...

Marine life receives its oxygen from warm water on the ocean's surface, but if there's no mixing with the colder water sitting below, then bottom-dwelling marine life, like lobsters, are unable to ...

Sleep apnea can cause low blood oxygen during sleep. Low oxygen levels from sleep apnea can lead to health issues like fatigue and shortness of breath. If blood oxygen levels drop below 92%, medical ...

The oxygen desaturation index (ODI) measures how often and how much your blood oxygen level drops while you sleep. A normal ODI is fewer than five desaturation episodes per hour of sleep, and anything ...

For some amphibians, like salamanders and newts, losing a limb is not a big deal. But why mammals don’t share the ability to regrow limbs after amputations has been hard to explain. One theory ...

You could call it “Dead Zone East,” a 1,634-square-mile area of Gulf of Mexico bottom waters with dangerously low levels of oxygen on the east side of the Mississippi River. It's a bit larger than the ...

The biggest mass extinction in Earth history some 251 million years ago was preceded by elevated extinction rates before the main event and was followed by a delayed recovery that lasted for millions ...