Unlike other islands scattered around the Cuban mainland, the no-frills Isle of Youth is relatively undeveloped. Some locals claim the island is abandoned. But within this castaway island, endangered creatures have sought refuge since long before anyone was looking. Natural disasters, invasive species, over-fishing and climate change threaten its delicate ecological footprint. But with help from eco-minded visitors, Cuban scientists and conservationists are setting a benchmark to ensure nature reclaims and thrives in this remote, secluded landscape.