Oxygen levels in the Earth's atmosphere are likely to have 'fluctuated wildly' one billion years ago, creating conditions that could have accelerated?the development of early animal life, according to ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. Off the coast of southeastern China, one particular fish species is booming: the ...

Earth's atmosphere maintains a constant level of oxygen, whether it is a wintry, rainy day or hot summer. Across the ocean, oxygen concentrations vary enormously between different places and over time ...

Delhi-NCR’s H1N1 cases have surged, with doctors warning about severe breathing complications, falling oxygen levels and the ...

Earth's magnetic field and oxygen levels are inextricably linked, new research suggests. The strength of the geomagnetic field has gone up in lockstep with the percentage of oxygen in Earth's ...

Only one study looked at whether giving medicines that stimulate breathing, like caffeine, to babies born a few weeks early can help prevent or reduce problems with low oxygen levels or breathing.

Delhi-NCR is witnessing a rise in H1N1 and other respiratory infections amid humid and changing weather conditions. Several ...

H1N1 cases are rising in Delhi-NCR, and doctors are reporting some patients with breathing complications. Most recover ...

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 ...