Finding the key to flightlessness

Since Darwin’s era, scientists have wondered how flightless birds like emus, ostriches, kiwi, cassowaries and others are related, and for decades the assumption was that they must all share a common ancestor who abandoned the skies for a more grounded life. By the early 2000s, new research using genetic tools upended that story, and instead…

A ‘virtual’ view with a little bit of math

IMAGE: Marjorie Skubic, left, Giovanna Guidoboni and a team at the University of Missouri are currently working to develop a standardized model to interpret the results of a ballistocardiogram that could… view more  Every heart beat sends blood flowing throughout the human body. While an electrocardiogram uses a contact approach to measure the electrical activity of…