Consisting of 140 miles through the Sahara Desert, the six-day Marathon des Sables in Morocco is one of the toughest races on earth. And this year, a dog has run almost the whole thing.
Runners and organizers are calling the pooch Cactus, and he joined the legendary race midway through Monday’s second stage. Since then the dog has been inseperable from the rest of the pack, running alongside the people and holding up just as well as any of them.