A specimen nicknamed "Willo" may be the first dinosaur ever found with a fossilized heart. Some scientists further suggest that the organ is a four-chambered heart more like those of mammals or ...

A group of Americans are sent by the New York Times to Kigali to cover the ethnic violence in the Rwandan capital, but tensions simmer and secrets come to the fore.

Final ThoughtsThanks to Dr. Taylor, Sam, Lucious, and Jane, we’ve learned so much about the fascinating world of animal ...

For example, the heart begins as a simple tube that undergoes a series of bends and twists to form its mature four-chambered structure. These shape-morphing behaviours are essential for sculpting ...