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 ...

Citizen scientists can help track the progress of a new population of tortoises in the Galapagos with the Giant Tortoise Initiative on Zooniverse. Finches may have been the key to Darwin's theory of ...

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 ...