The Galápagos giant saddleback tortoise refers to several subspecies of *Chelonoidis* distinguished by their distinctive saddle-shaped shell, which curves upward sharply at the front, allowing the tortoise to stretch its long neck high to browse on cacti, tree branches, and other vegetation growing above ground level. This shell shape stands in contrast to the dome-shaped shells of tortoises from lusher, higher-altitude islands, and it evolved as an adaptation to the arid, sparsely vegetated lowland habitats found on islands like Española, Pinzón, and parts of Santa Cruz and Isabela, where food is scarce and often grows tall. Saddleback tortoises tend to be smaller and lighter than their dome-shelled relatives, with longer necks and legs that further aid their reach, and they were historically decimated by whalers and pirates who captured them for food, as well as by introduced goats that stripped the islands of vegetation. The Española saddleback population became especially famous through conservation efforts, having been reduced to just over a dozen individuals before a successful captive breeding program, spearheaded in part by the tortoise Diego, helped restore the wild population to over 2,000. Today these tortoises remain a symbol of both the Galápagos' unique evolutionary pressures and the islands' ongoing conservation success stories, with careful management continuing to protect their fragile island ecosystems.
