Bridgestone has developed a rubber fin for a dolphin that lost most of its tail fin to disease. The beneficiary of the technology is Fuji, a 235-kilogram 2.7 metre female at the Okinawa Churaumi Aquarium. Fuji has regained nearly all of her swimming ability since receiving the new fin in what is believed to be the first-ever successful development of an artificial fin for a dolphin. Fuji has been in the Aquarium for 28 years, and the oldest of her three offspring, Ryu, 26 years of age, is the Japanese record holder for dolphin lifespan completely under human care. Fuji contracted the disease that caused progressive deterioration of her tail fin from the edge in October 2002. Amputating most of the fin saved Fuji’s life but left her unable to swim well. Volunteers at Bridgestone went to work on the rubber fin for Fuji in December 2002 and the company subsequently assembled a project team to tap the full range of Bridgestone’s rubber technology. The team delivered its first prototype in September 2003 and followed up with a second prototype the next month. A few years down the track and Fuji is fully recovered - that's her getting airborne, complete with her artificial fin.