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Old salt lizard at home in Darwin’s primal landscape

Photographer Sebasti茫o Salgado sets the armour-like scales of the world's only seafaring lizard among the hard landscape of the Galapagos Islands' laval rocks

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IF YOU wanted to go back in time to capture a pristine, ancient world untouched by the human hand, where might you start? You could do worse than the Galapagos Islands. This is where photographer began his eight-year global odyssey across 32 countries to unearth and immortalise nature鈥檚 many 鈥渦nblemished faces鈥.

Following the route around the islands that Charles Darwin took on the Beagle, Salgado caught up with one of the many quirky creatures that live in this evolutionary haven: .

Its tail, glistening here like chain mail against a moody reflection of sky and black laval rocks, is a perfect adaptation to the nautical lifestyle. It is laterally flattened like an oar to help propel the iguana into deep, cold waters to forage for seaweed. Feasting on seaweed could ratchet up your salt levels, but this creature has a special gland in its nostrils that filters out the excess, which is then .

Most outlandish of all is the marine iguana鈥檚 adaptation for dealing with the harsh boom-and-bust cycles of food caused by the cyclical weather phenomenon El Ni帽o. To cope, these iguanas not only grow skinnier with famine, but also shrink in length too, most likely digesting parts of their own bones to survive.

Topics: Biology / Charles Darwin

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