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


Tracking LJ

Species: Bull Shark
Scientific Name: Carcharhinus leucas
Date Tagged: November 6, 2010
Location Tagged: Everglades National Park
Gender: Male
Total Length (TL): 173cm

About LJ

The Story Behind the Name: One of our longest standing members of the SRC team and family is Leann Jennifer Winn. She has been a strong supporter of Dr. Hammerschlag’s early work with shark conservation and outreach, and continues to be today. As a full-time science teacher at Palmer Trinity School, Leann brings a level of excitement and expertise that reinforces the educational standpoint of SRC research. Her ability to effectively motivate and communicate with students while out on the water ensures that her students receive the best experience possible. LJ, is named in honor of this inspiring community leader and teacher.

LJ was carefully tagged with the latest in satellite tag technology providing us with one of the first opportunities to follow the long term movements of these threatened species. Please keep checking back frequently to follow LJ’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.