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...pictures, sent by a biologist in the northern Italian town of Lerici in July, marked the first time the species Mnemiopsis leidyi, a thumb-size jellyfish known as the sea walnut, had been documented in the western Mediterranean Sea. Native to the Atlantic coast of the U.S., Mnemiopsis was introduced to the Black Sea in the 1980s - most likely from the ballast water of oil tankers - and played an instrumental role in the collapse of the region's fisheries. "Now the question is, Will it do in the Mediterranean the same thing it did in the Black Sea?" Boero says...
...outbreaks forced numerous resorts along the Mediterranean coast to shut their beaches. In Corsica and Tuscany, several swimmers were wounded by Portuguese man-of-wars, jellyfish-like creatures with a potentially fatal sting. In Tunisia, a swarm of jellyfish engulfed a fish farm, killing the year's production of sea bass and sea bream...
...reasons for the recent explosion in jellyfish numbers are many. The problems in the Black Sea occurred because Mnemiopsis had been introduced to an ecosystem that had already been severely overfished. In a healthy ecosystem, small fish keep the jellyfish population in check by eating their young. But when the fish population plummets, the tables are turned. By preying on the eggs and larvae of the few surviving fish, the jellyfish prevent them from replenishing their numbers and quickly take their place. "We're shifting from a fish to a jellyfish ocean," says Boero. "We're removing most...
Ortega, a long-time Jackson collaborator, refrains from digging up archival footage of past stage endeavors—one tear-streaked face amongst a sea of roaring spectators, the brief burst of stunned applause from a 1983 audience witnessing the moonwalk for the first time—and instead uses the bulk of the film to offer a glimpse of his plans for the future. Not content to simply belt out his greatest hits to a packed arena, Jackson’s best-known songs are paired with various elements of cutting-edge technology to create what would have been...
...estimated 800 marathons are now held around the world each year; 20 of them with 10,000 or more finishers. They include such punishing races as the Great Tibetan Marathon, held at 12,500 ft. above sea level; the Polar Circle Marathon, held on Greenland's ice cap; and the Pikes Peak marathon, which includes a 6,000-ft. climb to the summit of the Colorado mountain. Record times have fallen from close to three hours a century ago to close to two hours today, with Ethiopian Haile Gebrselassie setting the current record in Berlin last year with a time...