Weighing more than 500 pounds and with an average life span exceeding a century, the Galápagos giant tortoise — once one of nature’s most enduring animals — is now one of its most endangered. Found ...

They enthralled sailors. They inspired Darwin. Then, by the mid 19th-century, the iconic Floreana tortoise was gone. Here’s how a group of persistent scientists unlocked the secrets to bringing them ...

After more than a century of munching on her favorite foods of romaine lettuce and cactus fruit, beloved Galápagos tortoise Gramma, the oldest resident of the San Diego Zoo, has died. Gramma was born ...