#WorldMosquitoDay is dedicated to the medical work of doctor Sir Ronald Ross. In 1897, Dr. Ross made the discovery that mosquitoes are transmitters of malaria. This important discovery has helped pave the way towards combating the disease, which claims millions of lives every year. Over 40% of the world's population live in areas that are most at risk for contracting the disease.
Trees shrouded in ghostly cocoons line the edges of a submerged farm field in the Pakistani village of Sindh, where 2010's massive floods drove millions of spiders and possibly other insects into the trees to spin their webs.