We’ve all made two personal observations about mosquitoes. First, we don’t like them, and for good reason. At best, mosquitoes are a minor irritation and at worst, they give you a deadly disease. For example, in Africa, the mosquito Anopheles gambiae is a major vector for malaria. Second, mosquitoes tend to come out in force as the sun is setting. Thanks to work by Samuel Rund and his colleagues from the University of Notre Dame, we now know why that might be. Mosquito feeding behavior is tied to the creatures’ circadian rhythms.
Rund SS, Bonar NA, Champion MM, Ghazi JP, Houk CM, Leming MT, Syed Z, & Duffield GE (2013). Daily rhythms in antennal protein and olfactory sensitivity in the malaria mosquito Anopheles gambiae. Scientific reports, 3 PMID: 23986098.
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