'Shark Week' Sneak Peek! Check Out 2 Preview Videos

It's the most wonderful time of the year...Shark Week! Discovery's celebration of all things shark kicks off this Sunday, July 31, with new content concerning the big bad Great White shark.

"Great White Invasion" will begin the festivities, as the program examines the increasing numbers of very bold Great Whites that are swimming closer and closer to humans. You can see a clip from that investigation below.

The other Sunday program will be "Jaws Comes Home," which follows a shark expert as he tracks two big Great Whites named Curly and Ruthless (the latter of which is a great name for a shark, IMO). The second video below features a preview of a chase of a big 15-foot shark.

This year's Shark Week will be hosted by "SNL" regular Andy Samberg, who also recently appeared in "Friends with Benefits." Samberg has been bestowed the very offical-sounding title of "Chief Shark Officer."

Check out the preview videos below, and stay out of the water!