Tonight on SharkWeek: Research by the CSULB Shark Lab takes director Chris Lowe to Guadalupe Island, where he hopes to get to the bottom of the increase in LA's Great White population. . . Watch Sharks and the City: LA, tonight at 9p on Discovery. . . #SharkWeek #shark #greatwhite #LA #LosAngeles #photography #naturephotography #wildlifephotography #picoftheday #photooftheday #POTD