The two city corporations of Dhaka have tried many strategies in their war against the city’s mosquitoes to prevent dengue from spreading. From flying drones to detect stagnant water sources to releasing frogs in ponds to destroy mosquitoes and their larvae, they explored so many avenues.

Mosquito larvae have been observed ingesting microplastics that can be passed up the food chain, researchers say, potentially uncovering a new way that the polluting particles could damage the environment.