The great Porcupine Caribou herd ranges over Alaska’s Arctic National Wildlife Refuge, and two Canadian national parks, spending much of its life trying to avoid bites from millions of mosquitoes. The herd heads each year to calve on the coastal plain of the Beaufort Sea where winds blow away bugs. Now, a new study by Dartmouth College in New Hampshire warns that global warming will increase the mosquito population in the Arctic and expand the torment of the caribou. The news is likely positive for migratory birds, which fly north to such places as Teshekpuk Lake to feast on the insects that drive two and four-legged creatures crazy. Caribou in
