Elbows key for walkers' efficiency

Wandering through the Harvard campus one day in 2015, graduate student Andrew Yegian recalls how something unusual caught his eye. "I noticed a person running with straight arms," he explains. This really stood out for Yegian, ...

Further drivers of ocean deoxygenation identified

Measurements as well as model calculations equally show that the oxygen inventory of the oceans is decreasing. However, the models underestimate this decrease significantly making projections into the future problematic. ...

Life in the slow lane

A new study from British Antarctic Survey shows how five common Antarctic marine invertebrates (animals without a backbone) use less energy to feed, grow and reproduce than their temperate and tropical relatives. The study ...

Antarctic microbes hold clue to Earth's oxygen

At the bottom of an icy Antarctic lake, a thin, slimy layer of bright green microbes is generating a tiny oasis of oxygen that might give a picture of what early Earth looked like before oxygen became common in the atmosphere. ...

New probe can monitor shock from hemorrhages without drawing blood

It's inefficient to periodically draw blood from someone's neck to check oxygen levels, especially when that person is in an intensive care unit for massive blood loss. Yet the invasive procedure is currently the go-to method ...

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