Millions of years ago, a band of intrepid iguanas boarded a floating vessel, and reached the remote Pacific island chain.

Iguanas have often been spotted rafting around the Caribbean on vegetation and, ages ago, evidently caught a 600-mile ride from Central America to colonize the Galapagos Islands. But for long-distance travel,

Iguanas inhabit tropical, subtropical and desert regions of the Americas—but surprisingly, they’re also found on a few incredibly remote Pacific islands, such as Fiji. Exactly how iguanas could have reached these islands in the first place is a hotly debated topic.