marine science

COURTESY OF DISCOVERY CHANNEL

For the last 31 years, sharks have been subject to a week of media frenzy, taking place each July. But, throughout the year, they face a number of dangers that put their populations at risk.

Discovery Channel's Shark Week started Sunday and, this year, the focus is on conservation. On Second Thought dives in to explore shark facts, myths and more, from the Georgia coast to the islands of Palau.