Mosquitoes maintain a body temperature of about 70 degrees Fahrenheit. But when a mosquito sucks some toasty warm blood, its body temperature can rocket up. It’s like developing a huge fever almost instantly. That sudden heat can disable their digestive machinery. But rather than just dining off cold-blooded animals, they've evolved a way to beat the heat. So says a study in the journal Proceedings of the National Academy of Sciences. [Joshua Benoit et al., "Drinking a hot blood meal elicits a protective heat shock response in mosquitoes"]
蚊子体温保持在华氏70°左右（译注：21°C），但当它吸入一些暖和舒适的血液时，它的体温就会急剧上升，就像立刻发了高烧一样，那突如其来的热量会破坏它们的消化机能。与其仅仅吸食冷血动物，它们倒进化出了一种对抗热量的方式。《美国国家科学院刊》在一份研究中这样说道。【Joshua Benoit et al，吸食热血在蚊子身上引出一种保护性热休克反应】
As a mosquito's body temperature rises during a warm blood meal, its guts are flooded with a substance called heat shock protein 70. That heat shock protein acts as a sort of chaperone, keeping digestive enzymes from being curdled, and escorting any damaged ones to the waste bin. Other bloodsuckers like bedbugs produce heat shock proteins too—as do we, during a fever.
But when researchers blocked production of that heat shock protein and let mosquitoes feast, the blood meal sat longer in their guts. Which indicates that their digestion was impaired. And as a result they produced a quarter fewer eggs. So researchers looking to cut mosquito populations might try figuring out a way to make them have trouble digesting a hot meal.