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 ...

While on Galapagos, Darwin noticed that the giant tortoises, mockingbirds, and finches he studied differed in unique ways from the species that inhabited neighboring islands. It’s been almost 200 ...

No one knows exactly when Gramma the Galápagos tortoise was born on that volcanic chain of Pacific islands. What is clear, though, is that she lived through the fall of empires, two world wars, and ...