The CVA rose through the container and out of the holes on top, where two other flies were waiting.
Although, the two flies on top had plenty of food and plenty of space, but when they smelled the CVA produced by the fighting flies under them, the two flies on top started fighting as well.
However, humans that smell CVA don't fly into a rage.
"This evolved as a private means of communications between fruit flies," said Anderson.
"Aggression pheromones are used not only insects but in mammals as well. But whether we use aggression-promoting pheromones is speculation," he added.
"This is the most direct link between pheromone and anger," said Leslie Vosshall, a scientist at Rockefeller University in New York. Vosshall agrees that there could be such a chemical.
"Most of what turns out to be true in animals turns out to be true in humans as well," Vosshall added.
The study appears in journal Nature.
Source-ANI
TRI