Overview

• Jorge was released on April 11, 2025 after nearly 40 years in captivity and has swum about 3,800 km toward his natal waters in northern Brazil
• The satellite transmitter stopped sending signals in Rio de Janeiro’s Guanabara Bay several days ago
• Conservationists point to sediment and algae buildup on the telémetero and weak GPS reception as the source of the interruption
• Experts maintain Jorge is unharmed in shallow, food-rich waters and expect the device to clear obstructions and resume transmissions
• His multi-month migration provides rare tracking data on adult male loggerheads critical to conservation of the endangered Caretta-caretta