Mosquitos are among nature’s biggest pests. Their bites itch, they’re annoying and they can carry diseases. But surprisingly, says Clemson professor Peter Adler, of the approximately 60 mosquito species that inhabit South Carolina, two-thirds of them DON’T bite humans. Some are adapted to reptiles, others to birds, and some don’t feed on blood at all. Of those that do, different things about people attract them: size, the amount of carbon dioxide they produce, even blood type! (Type A, you’re