All varieties of botfly have the nasty habit of laying eggs on warmblooded animals, the newly hatched larvae boring into the subcutaneous tissue of their host and chowing down until they’re ready to start the next phase of the growth cycle. However, the human botfly—as its name unnervingly implies—specifically targets people. There have been documented cases where an unfortunate few have felt and even heard the juvenile botflies squirming beneath the skin on their head! Have you checked your scalp lately?