Friday, May 25, 2012

In The Beginning Was the Mudskipper?

In 1893, the Norwegian zoologist Fridtjof Nansen set off to find the North Pole. He would not use pack dogs to cross the Arctic Ice. Instead, he locked his fate into the ice itself. He sailed his ship The Fram directly into the congealing autumn Arctic, until it became locked in the frozen sea. Nansen was convinced that the ice itself would drift up to the pole, taking him and his crew along for the ride.

For two and a half years they drifted with the pack. It gradually became clear to Nansen that The Fram had stopped moving north and was now traveling east instead, back towards Europe. He leaped out of the ship and tried to sled up to the pole, only to discover that the ice he was now traveling on was moving south. Only four degrees away from true north, he decided to retreat. He bolted back for Franz Josef Land.

The Fram meanwhile continued to drift east. After several months, it broke free of the ice, and the crew sailed the ship south to the island of Spitzbergen. There on the bare flats they saw a giant balloon.

Its pilot was a young Swedish engineer named Salamon Andrée. Andrée had decided that ships like the Fram could never reach the Pole, and that flight offered the only hope. He had convinced the king of Sweden and Alfred Nobel to pay for a balloon which he had brought by ship to Spitzbergen. And there he mixed tons of sulfuric acid and zinc to create hydrogen gas, which filled his silk canopy for four days. But gales hit the island before he was ready to launch the balloon, and then the Fram arrived with stories of how Nansen was racing on sleds towards the pole. Andrée let the canopy fall back to the ground.

When he got back to Sweden, Andrée discovered that Nansen had actually failed and had returned to Norway. He began to plot a second attempt. He returned to Spitzbergen in 1897 and this time he succeeded in launching his balloon. For a few days Andrée floated north with his crew of two, bobbing up and down with the sudden changes in temperature and moisture of the Arctic atmosphere. But as he crossed over the edge of the polar ice, the voyage took a turn for the worse. The balloon became burdened with rain and snow, until the guidelines dragged across the ice, until the gondola bounced like a ball on the ground, until the balloon came to a rest.

For a week the crew huddled in cramped fog. Andrée decided to pack sledges with food and a collapsible boat, which they dragged over the drifting ice. Hauling them across sloshing leads, they hoped, like Nansen, that they could find refuge in Franz Josef Land. But the ice wandered in the wrong direction under their feet, and after two months of this polar treadmill they reached a little hump of Arctic rock called White Island. In 1930 whalers came to the island and discovered their decrepit boat, their journals, and Andrée’s corpse still sitting in the snow.

But in 1897, no one knew where Andrée had gone. His fellow Swedish scientists searched for him by ship in the following summers, first travelling around Spitzbergen, and then heading to Greenland. As the pack ice opened, they traveled for eight weeks along its eastern edge in their sail- and steam-powered ship. They mapped the tentacled coast, and in one fjord along an elephant-backed mountain they named Celsius Berg, the explorers found bones.

They weren’t the bones of Andrée and his crew. They were the bones of fish that had been resting in the Greenland rocks for over 350 millions years.

Other fossils of these fish had been found elsewhere in late Devonian rocks, but to those who studied that era, Greenland was a revelation. It was as if a new continent suddenly appeared on the map: other Devonian rocks were hid for the most part under a woody, bushy carpet in places like England and Pennsylvania, while the mountains of Greenland were mercilessly bare. Unfortunately the new fossils were also so remote that only some greater pretext–like the search for a famous explorer–could get the paleontologists to this far corner of the Arctic.

by Carl Zimmer, The Loom/Discover Magazine |  Read more:
Image via Wikipedia