A group of spiky reptiles living on Clarion Island off the coast of Mexico has escaped extermination after it was discovered that they are not the invaders they had been labeled. Known as spiny-tailed iguanas ( Ctenosaura sp. ), it had been assumed they were introduced to the island by humans, but oh how wrong we were. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Invasive species are a big problem for ecosystems. Just look at New Zealand, where the introduction of ground-dwelling predators like rats and possums has decimated their populations of flightless birds (a trend they hope to put to an end with Predator Free 2050 ). When humans create a problem, it’s only right that we try to correct it (or eat it ), but the iguanas o

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