National Public Radio: When wildlife biologists visited a remote spot in Canada called Banks Island in the spring of 2004, they discovered thousands upon thousands of dead musk oxen. It took years to determine the cause. They called it “rain-on-snow” — the worst case of it ever documented. Musk oxen clash horns in a battle for dominance on Alaska’s Seward Peninsula. Researchers suspect that herds of reindeer, musk oxen, and other Arctic animals may face starvation as a warming climate impacts their ability …