Spy on your favorite Tiger, Hammerhead, and Bull sharks in our custom-designed Google Earth interactive map.


Tracking Hurley

Species: Great Hammerhead
Scientific Name: Sphyrna mokarran
Date Tagged: March 12, 2010
Location Tagged: Just off the Atlantic coast of Islamorada, Florida Keys
Gender: Male
Total Length (TL): 262cm
Precaudal Length (PCL): 198cm
Fork Length (FL): 204cm

About Hurley

The Story Behind the Name: During a day of large swells on the high sea, several volunteers from South Broward High School as well as a few SRC intern veterans spent a considerable amount of time leaning overboard, sharing their lunches with the sharks. Perhaps it was the extra “chum” in the water, but whatever the reason, the crewmembers pulled aboard the largest Great Hammerhead yet. In playful memory of a day mostly spent hurling over the side of the boat, the young student volunteers decided to name this shark “Hurley.” He entered back into the water in excellent condition.

**Special Note** As you can see on the map, Hurley transmitted strong signals nearly every day for three months, until a few days after the Gulf Oil Spill began. Dr. Hammerschlag speculates that “the tag could have failed or it could have headed off somewhere else into deep water and just not come up in the last few months. But that’s very unlike the shark’s characteristics.” For more on SRC research on the Gulf Oil Spill, please check out this article on CNN (http://www.cnn.com/2010/US/06/28/oil.spill.sharks/?hpt=Sbin).

Satellite Tagging: Hurley was carefully tagged with the latest in satellite tag technology providing us with the first opportunity to follow the long term movements of these threatened species. Please keep checking back frequently to follow Hurley’s movements, which will be updated every few days as his satellite tag continues to send us real-time tracking data.

Adopt-a-Shark: For information on how you can contribute to our shark conservation research by adopting and tracking your own shark, please visit our Adopt a Shark page.

System Requirements

Google Maps renders in all modern browsers and mobile operating systems. For more details visit Google’s map support page to view detailed system requirements.


To animate our interactive shark tracking, play with the time slider tool in the map upper-left. Simply, go to the slider & separate the bottom left & right tabs by ~1/4”. Then click on the leading tab & drag it across the slider; or click play to automatically view tracks.