<p>Part Two of our conversation with shark researcher Dr. Catalina Pimiento, where we find out why this fifty foot long super-predator disappeared from the oceans.</p>

How Is An Ear Like a Fingerprint?

We hear amazing questions in the exhibit halls of the Museum of Science, Boston. Do woodpeckers get headaches? How many colors are in the rainbow? Who gets to drive the Mars rovers? Pulsar features short interviews with our education staff along with scientists, engineers, and experts from around the world in order to find the answers.