Well here's something Richard Dreyfuss could have really used 38 years ago.
A team of researchers developed a brand new app that tracks the locations and movements of great white sharks in near real time.
It's based off the work of scientists at the Marine Conservation Science Institute who tagged 22 great whites, and much of the data they receive on these sharks is now available on the "Expedition White Shark" app.
According to the app's description, the researchers "attached custom satellite tags to the dorsal fin of adult Great White Sharks, allowing us to follow their movements from satellites orbiting the earth ... Each signal beamed to us from space adds to our growing knowledge of the life history of this species."
And, for us non-scientists out there, we can all play along from home, keeping tabs on the patterns and personalities of these 22 sharks. The app includes a "Meet Our Sharks" feature, which uses all that collected data to present a detailed history on each of the tagged animals.
The developers do put out this cautionary note about the possibly limited availability of data: "Positions for the tagged sharks can only be calculated when a shark is at the surface with its dorsal fin out of the water for several minutes."
So if it's circling menacingly beneath the surface of the water? Well then, you're gonna need a bigger boat.