More than 2,500 plant species have the potential to invade the Arctic at the expense of the species that belong there. Norway is one of the areas that is particularly at risk.

More than 2500 plant species have the potential to invade the Arctic at the expense of the species that belong there. Norway is one of the areas that is particularly at risk.

British beaches have all the usual suspects like shells, seaweed, and maybe the odd crab scuttling for cover. But look a little closer, and the shoreline starts to feel more like another planet.

Socotra Island has been called the most alien-looking place on Earth, and with good reason. Sitting off the coast of Yemen in the Arabian Sea, it’s home to plants and landscapes found nowhere else.