Mosquitoes:: How and Why these creatures could be advantageous to humanity ???

Image Source:Pexels.com:FreeStock:Egor Kamelev
Every creature is ladden with both advantages and otherwise .

But several, like the ubiquitous tropical Mosquito is ONLY known for its EVIL; causing millions of deaths yearly by the very lethal Malaria disease .

Which advantages could you ascribe to this buzzing insect??