Galçpagos giant tortoises are fascinatingÑand endangered. They live only on the Galçpagos Islands, a chain of volcanic islands in the Pacific Ocean off the coast of Ecuador. These tortoises face threads from the humans who live onÑand visitÑthe islands as well as from Earth's warming climate. Join author Kate Messner on a journey to the Galçpagos Islands to see these incredible creatures up close and discover how cutting-edge technology is helping scientists to study and protect them. Text in Spanish.