Volunteers remove invasive plants at Sanibel's C.R. Johnston Preserve to restore habitat for threatened gopher tortoises.

Even Charles Darwin anticipated that the giant tortoises wandered large distances. In the cool dry season, the highlands of Santa Cruz are engulfed in fog which allows the vegetation to grow despite ...

Tulsa Zoo fans can take home a unique piece of the zoo’s newest arrivals this holiday season. The zoo’s seven Aldabra ...

Conservationists are hoping to strengthen regulations at a wildlife trade conference on birds, reptiles and other animals ...

An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. She moved ...

No one knows exactly when Gramma was born. But if the estimated birth year of 1884 is accurate, Chester Arthur occupied the Oval Office and there were only 39 states at the time.

The San Diego Zoo's oldest resident, a Galapagos tortoise named Gramma, died Nov. 20. She was estimated to be 141 years old.

The Convention on International Trade in Endangered Species of Wild Fauna and Flora, or CITES, came into force 50 years ago and remains one of the most ...

San Diego Zoo staff and animal lovers are reeling this week following the death of beloved Gramma the Galápagos tortoise, by far the zoo's oldest resident.

Her life spanned a tumultuous period of U.S. and world history, from Chester Arthur to Donald Trump. To San Diegans, she was a beloved local celebrity.

Simón Bolívar, the hero of the Latin American wars of independence, dreamed of South America becoming a single great power.

The Sonoran Desert tortoise is a candidate for endangered species protection once again after federal regulators agreed Monday to reconsider their 2015 decision not to list the reptile. The move comes ...