Until the age of six or eight, when the hard shell becomes fully developed, the young tortoises are very vulnerable to predators, and may fall prey to rats, badgers, magpies, foxes, wild boar, and many other animals. If they survive these threats, the longevity of Hermannâs tortoises is around 30 years.n 2006, Hermann's tortoise was suggested to be moved to the genus Eurotestudo and to bring the subspecies to the rank of species (Eurotestudo hermanni and Eurotestudo boettgeri).