Not surprisingly—since, after all, mosquitoes bite us to harvest proteins from our blood—research shows that they may find certain blood types more appetizing than others. A 2004 study by Yoshikazu Shirai, Hisashi Funada, Taisuke Seki, Masaaki Morohashi, and Kiyoshi Kamimura found that in a controlled setting, mosquitoes landed on people with Type O blood nearly twice as often as those with Type A. People with Type B blood fell somewhere in the middle of this itchy spectrum.⁠ ⁠ Additionally, based on other genes, about 85 percent of people secrete a chemical signal through their skin that indicates which blood type they have, while 15 percent do not, and mosquitoes are also more attracted to secretors than nonsecretors regardless of which type they are.⁠ ⁠ ⁠ ⁠ #science #bloodtype #biology #mosquito #mosquitoes