Tonight on the Discovery Channel, scientists explore great white migration patterns, shark attack survival tips, and an elusive deep sea beast. Stream Shark Week through Saturday, July 26.

In its 37th year, Shark Week is the Discovery Channel's annual weeklong slate of shark-related programming. This year's event kicked off Sunday, July 20, with "Dancing With Sharks," an inter-species dance competition hosted by returning "Dancing With the Stars" frontman Tom Bergeron.

Now a bonanza of viewership, the 37-year-old event that launched as a meager presentation of 10 basic programs and has also courted detractors over the years.