BUT THE STORY ISN'T OVER: The shark left the aquarium's care with a pop-up tag. The tag'll track his movement and water temperature and such for the next 180 days. Then? The tag literally pops off. The information will return to terra firma via satellite. And don't feel down if you meant to get to the aquarium to see the shark; he was the sixth great white to pay a call at the Monterey institution. Surely it can't be long before another powerful, sleek-finned beauty makes a brief and important stop-by.