Mosquito Biologist Dr. Bart Knols, points to an Anopheles mosquito larvae as he speaks on the use of...
Mosquito Biologist Dr. Bart Knols, points to an Anopheles mosquito larvae as he speaks on the use of drone technology in the fight against malaria, in a rice field near Zanzibar City, on the island of Zanzibar, Tanzania, October 30, 2019. Picture taken October 30, 2019. REUTERS/Baz Ratner