but one spic species is impossio miss. leopard sharks.undredses of them. >> if you are the director of the shark lab and you are trying to revolutionize the way sharks had studde studied it's not a bad way to set up shop. chris lowe is the director of calcal state long beach's shark lab. getting to know him and his work is getting your feet wet. obviously here a day at the office is a diffe different attd a different look at the world. >> it takes a few moments under the water to understand chris' passion for the othe ocean and e sharks he study:whe : >> when i caught my first shark there was something about it. it looked so different from all of the other fish i caught and it looked so streamline and sleek. it didn't match all of the fish i caught. >> what about it from the sharks threat that interested you in a sciencivic perspective. >> they are at the top of the food chain. they are the canary of the coal mine and they tell us how healthy the oceans are. the wheel lengt challenge is ha. you want to th want to the share here and they d