Oxygen levels link to ancient explosion of life

Oxygen levels link to ancient explosion of life

A team of researchers, including a faculty member and postdoctoral fellow from Washington University, found that oxygen levels appear to increase at about the same time as a three-fold increase in biodiversity during the Ordovician Period, between 445 and 485 million years ago, according to a study published Nov. 20 in Nature Geoscience.
Water world

Water world

Three Washington University in St. Louis scientists studied the great granddaddy of all photosynthetic organisms — a strain of cyanobacteria — to develop the first experimental map of that organism’s water world.
WashU Expert: Energy alliances must be holistic, realistic

WashU Expert: Energy alliances must be holistic, realistic

In reaction to multiple countries — including Canada, the United Kingdom, France and Italy — announcing at the United Nations climate talks that they’re unifying to phase out coal-generated power by 2030, an environmental engineer at Washington University in St. Louis warned that a “mix of energy sources” is vital for the near future.
Bear or chipmunk? Engineer finds how brain encodes sounds

Bear or chipmunk? Engineer finds how brain encodes sounds

When you are out in the woods and hear a cracking sound, your brain needs to process quickly whether the sound is coming from, say, a bear or a chipmunk. In new research published in PLoS Biology, a biomedical engineer at Washington University in St. Louis has a new interpretation for an old observation, debunking an established theory in the process.
Older Stories