Bitey bites

Mosquitoes tend to bite people who perspire more carbon dioxide.
The more you release through your skin, the more they bite.
Aside from wearing skintight clothes or toxic levels of insect repellent, you’re pretty much screwed if you’re a heavy carbon dioxide releaser. Like Fred.
Fred volunteered for polar exploration duty to get away from the damned things, and for once in his life, he was free of little red welts, itching, and disgusting chemicals on his skin.
Sure it was cold as fuck, but he didn’t care.
Until he fell into a crevasse and was never seen alive again.