How we rediscovered ‘extinct’ giant tortoises in the Galápagos Islands – and how to save them

The Galápagos Islands, 1,000 kilometres off the coast of South America, are probably most famous as the place that inspired Charles Darwin’s theory of evolution. They are home to an extraordinary array of wildlife, including giant Galápagos tortoises, the world’s largest land-living cold-blooded animals.

The tortoises once thrived in the archipelago. There were originally 15 species that evolved as the islands formed volcanically. However, since the arrival of people four species have become extinct.

A few weeks ago we returned from an expedition to the islands in search of two of these extinct species of tortoises. It may sound like a fool’s errand, but our expedition was a success.

Here’s how we did it. Read More from The Conversation Article…