Telegraph: Conservation charity WWF said it had obtained footage more than 100 walrus carcasses spotted by US Geological Survey (USGS) researchers flying near Icy Cape, Alaska, after a massive herd of walruses congregated on the shore. A preliminary report by experts in the US concluded 131 carcasses, mostly of calves and young walruses, found in the area had been trampled to death by other walruses. WWF said the reduction in Arctic sea ice cover was forcing the animals to take refuge on …