Fruit fly males have been shown to give sleeping chemicals to females in order to prevent mating with other males

Photo by Egor Kamelev on

During mating, male fruit flies introduce females with a substance that puts them to sleep so that they don’t mate with other males, according to a study conducted by scientists from Argentina’s Bariloche Atomic Center and the Fundación Instituto Leloir—IIBBA—CONICET.

The team reveals its webcam-based study of fruit fly mating in their lab in a paper published in the open-access journal PLOS Genetics.